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时间:2010-05-10 17:53来源:蓝天飞行翻译 作者:admin
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approval from the Administrator, a person qualified to
alter a parachute would first contact the FAA Flight
Standards District Office (FSDO) to discuss the proposed
alteration with an FAA inspector. The inspector requires a
description of the proposed alteration along with a sample,
technical data, and proposed test data to ensure that
the altered parachute meets all applicable requirements.
After discussing the proposed alteration, the two parties
agree on a suitable plan of action. The individual then
drafts an application, in letter form, addressed to the local
FSDO. Along with the letter, the following information
needs to be attached:
1. A clear description of the alteration.
2. Technical information that includes drawings and
photographs, materials used, stitch patterns, and
location of altered components.
3. A means of identifying the altered parachute such as
model and serial number and identification of the
person having performed the alteration.
After the inspector reviews the application, if he/she is
satisfied, he/she indicates approval by date stamping,
signing, and placing the FSDO identification stamp on
the letter of application. Upon receiving this approval, the
master rigger can then perform the alteration.
7.5 The following are alterations found in Section 5
of this chapter. (* Denotes approval needed by the
Administrator or the Manufacturer)
7.5.1 * Articulated harness main lift web resizing
7.5.2 Leg pad resizing
7.5.3 * Automatic Activation Device (AAD)
installation
7-93
7-94
7-95
Parachute Repair Procedure
TITLE: 7.5.1 Articulated Harness Main Lift Web (MLW) Resizing
NUMBER OF PAGES: 2
APPLICABLE PRODUCTS: Most articulated harness configurations.
DESCRIPTION: Resizing of an articulated harness.
AUTHORIZED REPAIRMEN: FAA Master Parachute Rigger
MATERIALS: E thread
5-cord nylon thread
Ty-7 webbing, or as original
Ty-4 1" tape
MACHINES: 308 Zigzag—Medium Duty 7-11 SPI
Heavy-duty harness machine, Singer 7-33 or equivalent 4-6 SPI
EQUIPMENT:
Scissors
Seam ripper or scalpel
Marking pencil
18" ruler
Hot glue gun
PROCEDURE
Note: Resizing of a harness is usually considered an alteration. However, because of the simplicity
of the procedure, most manufacturers do not object to a qualified master rigger performing the procedure.
It would be wise, however, for the rigger to contact the manufacturer for permission before
undertaking the procedure. The following procedure is shown on a VoodooTM system.
1.0 DISASSEMBLY:
1.1 Measure the main lift web to check if the harness is even.
1.2 Remove the ripcord pocket/MLW cover [Figure A].
1.3 Measure the lower MLW [Figure B].
1.4 Remove the lower MLW [Figure C].
7-96
2.0 REASSEMBLY:
2.1 Measure the webbing for the lower main lift web [Figure D].
2.2 Zigzag the bowtie folds as marked including the Ty-4 buffers [Figure E].
2.3 Glue the MLW in place. Make sure that the open end of the webbing is on the rear and oriented
up towards the chest strap.
2.4 Mark the stitch pattern on the MLW and sew with the harness machine. Use a 3" W-W pattern
at the top as shown in Figure F. Include a box pattern on the lower section of the MLW.
2.5 Reattach the ripcord pocket/MLW cover [Figure G].
3.0 INSPECTION:
3.1 Check that the new harness dimensions are correct and symmetrical.
3.2 Verify the harness stitching is correct for SPI and tension.
3.3 The ripcord pocket/MLW cover must be reattached.
A
B
C
CHEST RING
1.50
HIP RING
FINISH
8
A
B
C
D
E
7 6 5 4 3 2 1
A
B
C
E
8 7 6 5 4 3 2 1
CONTRACT No.
PREP
CHKR
APVD
APVD
SCALE SHEET
SIZE NUMBER
S. REID
S.REID
12-1-03
7.5.1d
12-1-03
D
NO. DESCRIPTION REQD MATERIAL SIZE
1
1 1
2
LOWER MAIN LIFT WEB TY-7 A/R
BUFFER TY-4 1" 3.00
S. REID 12-1-03
XXS
XS
SM
MED
LG
XL
MLW FINISH
XXL
SIZE
12.00
13.00
14.00
15.00
16.00
17.00
18.00
9.25
MARK A-B-C
10.25
4.75-11.00-15.75 5.25
5.00-11.50-16.50 5.50
5.75-13.25-19.00 6.38
7.12-15.88-23.00 7.62
8.00-17.75-25.75 8.62
9.00-19.50-28.50
10.00-21.50-31.50 MULTI-FLEX LOWER
MAIN LIFT WEB
Figure D
7-97
Parachute Repair Procedure
TITLE: 7.5.2 Leg Pad Resizing
NUMBER OF PAGES: 2
APPLICABLE PRODUCTS: Most harness leg pad configurations.
 
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