Service difficulty report · Skin · Boeing 73773V

Difficulty date
June 29, 2019
Submitted
March 11, 2022
Operation
Air carrier
Aircraft
N561WN
Make and model
Boeing 73773V
Aircraft serial
32417
Aircraft time
51,509 hours, 33,213 cycles
Part
Skin
Condition
Corroded
Location
Aft Fuselage
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON SKIN AND FROM BS 896-1002 APPROS STR 2L -2R UNDER FOOT PRINT OF DORSAL FIN / REMOVED CORROSION ON CROWN SKIN BETWEEN BS 896 TO BS 1002 STR 2L TO 2R. ALL BLENDED AREAS WERE FOUND TO BE WITHIN THE LIMITS PER SRM 737-700 ALLOWABLE DAMAGE FIG 103; DETAIL C (LESS THAN 10% MATERIAL REMOVED) HOWEVER; THEY FAIL THE REQUIREMENT OF DETAIL D-DUE TO TOO MANY FASTENERS REMOVED IN DAMAGE REMOVAL AREAS. REPAIRED PER EA 1-753-35313 REV IR & ER 19-04020 REV IR

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