(2)
Dangerous Turbulance
(3)
Engine Vibration
TASK 05-51-44-202-006
2. Examine the Nacelle/Strut Structure___________________________________
A. Procedure
S 212-002
(1) Examine the nacelle/strut inner and outer surfaces for distortion, cracks, pulled rivets, and rivets which are not there.
NOTE: Carefully examine the surfaces for discoloration
____ and/or flaking paint. This could be a sign of a broken pneumatic duct.
TASK 05-51-44-202-007
3. Examine the Pneumatic Ducts___________________________
A. Procedure
S 212-004
(1)
Examine the hard ducts and flexible sense lines for cracks and tears.
(2)
Examine the clamps, nuts, and fastners for tightness.
S 282-005
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05-51-44
ALL ú ú 01 Page 201 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
LANDING-GEAR-DOWN OVERSPEED CONDITION - MAINTENANCE PRACTICES
_____________________________________________________________ (CONDITIONAL INSPECTION)
________________________
1. General_______
A. Examine the structure in this subject when extending the landing gear in flight at speeds more than the permitted maximum placard speed.
TASK 05-51-47-212-006
2. Landing Gear Down Overspeed Condition, Conditional Inspection_____________________________________________________________
A. References
(1)
32-13-00/001, Main Gear Doors
(2)
32-22-00/001, Nose Gear Doors
B. Examine the Main Gear Door Areas
S 212-002
(1)
Examine the doors, hinges, linkage and linkage supports, and the fairing panels to look for distortion, cracks, misalignment, displacement, fastener hole elongation or tear-out, and for fasteners that have pulled out or are not there (Ref 32-13-00).
S 212-003
(2)
Examine the systems that are installed in the wheel wells for damage.
C. Examine the Nose Gear Door Area
S 212-004
(1)
Examine the doors, hinges, linkage and linkage supports, and the fairing panels to look for distortion, cracks, misalignment, displacement, fastener hole elongation or tear-out, and for fasteners that have pulled out or are not there (Ref 32-13-00).
(2)
Examine the systems that are installed in the wheel well for damage.
S 212-005
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05-51-47
ALL ú ú 01 Page 201 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
HARD LANDING OR HIGH DRAG/SIDE LOAD LANDING,
____________________________________________ OR OFF RUNWAY EXCURSION MAINTENANCE PRACTICES (CONDITIONAL INSPECTION)
______________________________________________________________________
1. General
_______
A. The Inspection
(1)
The inspection is divided into two phases (Phase I and Phase II).
(a) The Phase I inspection is applicable when a Hard Landing or a High Drag/Side Load Landing occurs.
(2)
If the inspection during Phase I does not show that damage has occurred, no more inspections are necessary.
(3)
If the Phase I inspection shows that damage has occurred, the Phase II Inspection is necessary.
(4)
If you find damage in the Phase II inspection, tell Boeing about the total damage found. Additional inspections may be required.
B. Hard Landing
(1)
The hard landing conditional inspection is for hard landings at or below the maximum design landing weight limits.
(2)
If the pilot determines the airplane had a hard landing, a structural inspection is necessary.
(a)
For airplane flight data recording systems capable of at least eight (8) samples per second, the following can be used: An indication of a hard landing on the main landing gear is a peak recorded vertical acceleration that exceeds 2.1 G (incremental
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