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757 MAINTENANCE MANUAL
S 212-009
(3) Do the inspection of the fuselage.
NOTE: If you find external damage to the fuselage, always examine
____
the adjacent internal structure.
(a)
Examine the lower fuselage structure. 1) Examine carefully the area below the fuselage floor beams, immediately aft of the wing center section.
2) Also examine carefully the top of the fuselage in the areas near the wing front and rear spar.
(b)
757-200 AIRPLANES Examine the skin panels on the lower side of the aft fuselage (Examine carefully between Body Stations 1370 and 1470, below stringer 20).
NOTE: Small buckles or wrinkles between fasteners are
____ indications of damage. Large buckles or wrinkles between fasteners are also indications of damage.
(c)
Examine the wing-to-fuselage joints, and wheel well bulkheads and sidewalls.
(d)
Examine the fuselage skin joints above the landing gear beam.
S 212-012
(4) Reduced Vertical Separation Minimum (RVSM) Inspection
(a) Examine the reduced vertical separation minimum (RVSM) (AMM 51-10-00/601).
C. Put the airplane back to it's usual condition.
S 432-010
(1) Install the components you removed or install replacement
components.
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757 MAINTENANCE MANUAL
DRAGGED ENGINE NACELLE/ENGINE SEIZURE/ENGINE AND STRUT DAMAGE CONDITION -
_________________________________________________________________________ MAINTENANCE PRACTICES (CONDITIONAL INSPECTION)
______________________________________________
1. General_______
A. This section gives an examination procedure for the engine and strut after a dragged engine nacelle condition. It also includes examination after an engine seizure and other types of engine and strut damage. Other types of engine damage refers to conditions that cause abnormal engine vibration. These vibrations can be caused by loss of fan blades or other parts of the engine or cowling. Other types of strut damage refers to conditions that cause damage to the strut or cowling. The type of damage, such as dents or wrinkles is caused when they are touched by ground support equipment.
TASK 05-51-10-212-001
2. Dragged Engine Nacelle/Engine Seizure/Engine and Strut Damage_____________________________________________________________ Conditional Inspection______________________
A. References
(1)
54-51-01/601, Nacelle Strut
(2)
54-52-01/601, Nacelle Strut Fairing
(3)
71-00-00/601, Power Plant
B. Examine Struts and Nacelles
S 212-002
(1) Examine the areas that follow for buckling, cracks, and fasteners that have pulled out or are not there. Also look for unusual external conditions (Ref 54-52-01).
(a)
Strut panels
(b)
Strut doors
(c)
Lower surface of the nacelle cowlings.
(d)
If damage is found in the last steps, do the examinations that follow.
S 012-003
(2) Remove all strut panels and doors, and open the nacelle cowlings (Ref 54-52-01).
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757
MAINTENANCE MANUAL
S 212-004
(3) Examine all engine mounts and strut-to-wing attachments, and their fittings, fitting pins and fuse pins. Look for cracks, signs of offset deformation, or peening of pins or bushings (Ref 54-51-01).
S 212-005
(4) Examine all other primary structure, which includes the wing support fittings. Look for distortion, cracks, paint that has flaked, and fasteners that have pulled loose or are missing.
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