Grumman American AA-1 Series User manual

MAINTENANCE
AA1C
TCAT Si LYNX
19*77/7Q MODELS
GRUMMAN ^(M[!!^0(^0^l
ISSUED: DEC 15/1976
REVISED: JAN 15/1978
GRUMMAN AMERICAN AVIATION CORPORATION
P.O. BOX 2206
SAVANNAH, GEORGIA 31402
Copyright 1978 Grumman American Aviation Corporation, Savannah, Ga.

Copyright 1978
All rights reserved, including the right to reproduce this publication.
No part may be reproduced, stored in any retrieval system, or trans
mitted in any part or form or by any means, electronic, photocopying,
microfilm, microfiche, mechanical, or otherwise, without prior
written permission of Grumman American.

GRUMMAN AVO^TDOIRFL
AA1C
MAINTENANCE MANUAL
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AA1C
MAINTENANCE MANUAL
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AA1C
T MAINTENANCE MANUAL
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AA1C
MAINTENANCE MANUAL
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/
njuMMAN mfiwmmtm mm
AA-1 SERIES
W MAINTENANCE MANUAL
LIST OF CHAPTERS
TITLE CHAPTER NO.
AIRCRAFT GENERAL
| Time Limits/Maintenance Checks 5
Dimensions and Areas 6
Lifting and Shoring 7
Leveling and Weighing 8
Towing and Taxiing 9
Parking and Mooring 10
Placards and Markings 11
Servicing 12
AIRFRAME SYSTEMS
Standard Practices  Airframe 20
r\ Air Conditioning 21
Communications 23
Electrical Power 24
Equipment/Furnishings 25
Flight Controls 27
Fuel 28
Ice and Rain Protection 30
Landing Gear 32
Lights 33
Navigation 34
| Vacuum System 37
STRUCTURE
Doors 52
Fuselage 53
Stabilizers 55
Windows 56
Contents
Page 1
Jan 15/78

GRUMMAN
AA-1 SERIES
MAINTENANCE MANUAL
o
TITLE CHAPTER NO.
Wings 57
PROPELLER
Propellers 61
POWER PLANT
| Power Plant 71
Engine Fuel and Control 73
Ignition 74
Engine Indicating 77
Exhaust 78
Oil 79
Starting 80
CHARTS
Charts 91
Contents
Page 2
Jan 15/78

GRUMMAN
AA-1 SERIES
MAINTENANCE MANUAL
INTRODUCTION
GENERAL
I
The function of this Maintenance Manual is to acquaint maintenance personnel with the systems and their com
ponents of the AA1C aircraft and to direct them in the proper procedures for maintaining the aircraft in an air
worthy condition.
This manual contains information on installations made in the aircraft during manufacture and optional equipment
only. However, information derived from applicable Single Engine Aircraft Service Kits, Service Bulletins, and
Service Letters will be included in the manual as soon as possible after the issuance of these documents. Changes or
installations made by the operator are not included in this manual.
The ability of maintenance personnel is recognized, and those procedures which are considered common to all
aircraft have been either briefly referenced or omitted.
FORMAT
Hie chapter identification in this manual has been prepared in accordance with Air Transport Association (ATA)
Specification No. 100. A functional breakdown is employed whereby all data pertaining to a given system, or
component of a system, may be found in one chapter with a minimum of crossreferencing to other chapters.
The Electrical Power Chapter in this manual covers only the power sources and distribution equipment for the
electrical system. There is not a chapter in this manual specifically designated for instruments. Details of individual
branch electrical or instrument systems will be found in the applicable chapter.
IDENTIFICATION OF SUBJECT MATTER
A threedash number system is employed to identify subject matter. The first dash number identifies the chapter,
the second dash number the section, and the third dash number the component or subsection of the section. The
following example illustrates how the numbering system is used in the NAVIGATION Chapter:
, — Identifies NAVIGATION Chapter.
Identifies that section (group of related subjects) which pro
vides coverage for the Flight Environment Data portion of the
NAVIGATION Chapter.
34 —
1
— 1
Identifies a specific subject (component) of the Flight Envi
ronment Data. In this manual it is assigned to the Pitot and
Static Pressure Systems.
The dash 0 (0) is provided as a means for covering a complete system or subsystem. The chapter number followed
by a zero (340) will segregate that material covering the complete system; the chaptersection numbers followed by
a zero (3410) is used for further details covering the subsystem or component.
PAGE NUMBER IDENTIFICATION
Page number blocks are used to separate the subject matter into the following categories:
General Coverage and Unit Description
Trouble Shooting
Maintenance Practices
Pages 1 through 100
Pages 101 through 200
(See Below)
Introduction
Page 1
Jan 15/78

(2RUMMAN AOMOBIRIHgAlR!)
AA-1 SERIES
MAINTENANCE MANUAL
Maintenance Practices include as applicable the following subtopics: Servicing, Removal/Installation, Adjust
ment/Test, Inspection/Check, Cleaning/Painting, and Approved Repairs.
If all subtopics, under Maintenance Practices are brief, they are combined into one topic. All such combined topics
are numbered within page number block 201300. Whenever individual subtopics are so lengthy that a combination
requires several pages, each subtopic is treated as an individual topic. Page number blocks for this subtopic
arrangement are as follows:
Servicing 301  400
Removal/Installation 401  500
Adjustment/Test 501  600
Inspection/Check 601  700
Cleaning/Painting 701 — 800
Approved Repairs 801 — 900
Each new subject starts with page 1, 101, 201, etc., and continues through the page block assignment to the extent
necessary. The first page of each block is placed on a righthand page.
FIGURE IDENTIFICATION
Figures (illustrations) are numbered consecutively within each topic (subject) as follows:
Figures in Description — 1 > 2, 3,4, 5, etc.
Figures in Trouble Shooting — 101, .102,103, etc.
Figures in Maintenance Practices 
When not subdivided  201, 202,203, etc.
When subdivided 
Servicing  301, 302, 303, etc.
Removal/Installation — 401, 402,403, etc.
Adjustment/Test  501, 502, 503, etc.
Cleaning/Painting  701, 702,703, etc.
Approved Repairs  801, 802,803, etc.
INDEXING
Each chapter is prefaced with a table of contents identifying the subject matter within the chapter in the order of
presentation. The table of contents is arranged with the following headings: DESCRIPTION; TROUBLE SHOOT
ING; and MAINTENANCE PRACTICES.
PART NUMBERS
This manual must not be used for identifying spare parts by number. Consult the Illustrated Parts Catalog for this
information. Part numbers are used in this manual only as a means of identification when nomenclature alone is
inadequate.
Introduction
Page 2
Dec 15/76

GRUMMAN ^MO^TDOIRFL
AA-1 SERIES
MAINTENANCE MANUAL
REVISIONS
Revisions to the original text are indicated by vertical lines in the left margin of the page, adjacent to the revised
material.
The manual is provided with a "Log of Revisions" page for recording revisions by number and the dates on which
they were inserted in the manual.
Each page revised or added to the initial manual will be identified by the date of revision at the bottom of the page.
Pages issued with the original manual are identified with the issue date of the manual.
Each revision also contains a "List of Effective Pages". This list contains the chapter, page number, and date of each
page which is effective since the issuance of the initial manual. This list is updated for each revision, with page
changes indicated by the number of asterisks (*) placed adjacent to the page number as noted below:
* Pages revised by the current revision.
** Pages added by the current revision.
*** Pages deleted by the current revision.
CROSS REFERENCE
NAME, MODEL DESIGNATION AND EFFECTIVE SERIAL RANGES
Grumman American Aviation aircraft are certified under model number designations. For marketing purposes, each
model is also given a name. The aircraft model number is used in this publication except where the name is necessary
to differentiate between versions of the same basic model. The following table contains a listing of name, model
years, model number, and serial range.
POPULAR NAME
TCATORLYNX
TCAT OR LYNX
MODEL YEAR
1977
1978
MODEL
AA1C
AA1C
SERIALS
BEGINNING
AA1C0001
AA1C0123
ENDING
AA1C0122
AND SUBSQl
Introduction
Page 3
Jan 15/78

GRUMMAN
AA-1 SERIES
MAINTENANCE MANUAL
LIFTING AND JACKING POINTS
General
This section identifies and locates on illustrations those points that may be used when lifting or jacking of the
aircraft is required and describes some of the various methods used.
Lifting and Jacking Points
The lifting and jacking points for the AA1C aircraft are shown in Figure 1.
70
Page 1
Jan 15/78

GRUMMAN zSMO^TDOt^l
AA1 SERIES
MAINTENANCE MANUAL
Within 6" Outboard of
each horizontal stabili
3364
1. Front Lifting Point — Fuselage Station 51.
2. Aft Lifting Point — Fuselage Station 100.
3. Empennage Lifting Point — Within 6 in. of the horizontal stabilizer root.
Lifting and Jacking Points
Figure 1
70
Page 2
Dec 15/76

GRUMMAN
AIM)liP!OOA(fcD ^MO^TDOS^O
AA1 SERIES
MAINTENANCE MANUAL
PARKING
General
This section provides the procedures recommended to park the aircraft so that the likeUhood of ground damage is
minimized.
Parking Practices
CAUTION: WHEN CHOCKING WHEELS, ENSURE THAT THE CHOCKS USED ARE NOT LARGE ENOUGH TO
COME IN CONTACT WITH THE WHEEL FAIRINGS. USE OF CHOCKS THAT ARE TOO LARGE
MAY DAMAGE FAIRINGS.
When parking the aircraft, head into the wind and set the parking brakes. Do not set the parking brakes during cold
weather when accumulated moisture may freeze the brakes, or when the brakes are overheated. Install the control
wheel lock and chock the wheels. In severe weather and high wind conditions, moor the aircraft as outlined m
Section 1011, this Chapter.
NOTE: Install wheel chocks and release the parking brakes if the aircraft is to be left unattended. Changes in
ambient temperatures can cause the brakes to release or to exert excessive system pressure.
100
Page 1
Jan 15/78

QRllMMAN MMm®M
AA-1 SERIES
MAINTENANCE MANUAL
OPERATIONS PLACARDS
General
This section contains information relating to all placards aboard the AAIC aircraft which provide the pilot,
passenger, and maintenance personnel with aircraft operation data.
Placard Locations
The appearance, content and location of all operations placards are contained in Figure 1 and accompanying legend.
112
Page 1
Dec 15/76

GRUMMAN ^MO/^TOOTFTQ
AA-1 SERIES
MAINTENANCE MANUAL
VIEW C
19 27
Operations Placards (Sheet 1 of 8)
Figure 2
112
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Jan 15/78

OWUMMAN Mmm®M
AA-1 SERIES
MAINTENANCE MANUAL
1. Located below left and right forward canopy rail corners (one gauge for each wing tank)

FULL 1
3/4
1/2
1/4
0
2. Located forward on left side of canopy rail
3. Located forward on left side of canopy rail
OPEN
)
Operations Placards (Sheet 2 of 8)
Figure 2
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Dec 15/76

GRUMMAN
AA-1 SERIES
MAINTENANCE MANUAL
4. Located on lower left side of instrument panel.
PHONE
*
C
*
</ <&.
^ ^ O,
o "U
%
ON ON
M
A
A
L
S
T T
E
R
OFF OFF
o
STARTER
5. Located on instrument panel above airspeed indicator
GRUMMAN AMERICAN
NDDDDn
6. Located on top back, left and right centers of windshield framing.
HAND HOLD
7. Located on lower center of instrument panel
FUEL PUMP NAV ITS PITOT HT STROBE HASH BCN IDG IT
AIT AUDIO |
RAOIO
) ...
CABIN HT PARK BRAKE Fl£ LD AVP 1 ? 3 4 PILOT ALT
DIW^ y BRIGHT
OFF
PULL MOT PULL 'IN
8. Located on back of panel mounted "Escort model aircraft radio."
ESCORT 110 GA
Operations Placards (Sheet 3 of 8)
Figure 2
112
Page 4
Jan 15/78

BRUMMAN MIEPOS^IFil] MMmmM
AA-1 SERIES
MAINTENANCE MANUAL
24. Located on upper right side of instrument panel (optional equipment)
INTERCOM
ONLY
TRANSMIT
DISABLED
Y
PHONE SPEAKER
SIDE TONE
25. On instrument panel (optional equipment)
TURN OFF STROBE IN CLOUD, FOG
OR HAZE. TAXI WITH STROBE OFF
26. On wing outer ribs (optional equipment)
WARNING
HIGH
VOLTAGE
WAIT 5 MINUTES AFTER
SHUTTING OFF BEFORE STARTING
ANY WORK ON THIS UNIT
CAUTION
THIS UNIT POLARITY SENSITIVE
WHITE OR RED LEAD POSITIVE
BLACK LEAD AND OR CASE NEGATIVE
27. Adjacent to auxiliary power plug (optional equipment)
CAUTION: 12 VOLT
D.C. ONLY, MASTER
SW. MUST BE OFF
Operations Placards (Sheet 8 of 8)
Figure 2
112
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Dec 15/76

BRUMMAN ^VO/&YO®(FTD
AA-1 SERIES
MAINTENANCE MANUAL
28. Located near center of instrument panel
[ ON
T
+
| ARM
FOR AVIATION EMER
GENCY USE ONLY.
UNLICENSED OPERA
TION UNLAWFUL.
OPERATION IN VIOLA
TION OF FCC RULES
SUBJECT TO FINE OR
LICENSE REVOCATION
29. Located on sun visor.
CAUTION
SWIVEL VISOR
AFT AND UP
BEFORE OPENING
CANOPY
112
Page 10
Jan 15/78