Service difficulty report · Rail · Boeing 737990ER

Difficulty date
December 12, 2024
Submitted
December 31, 2024
Operation
Air carrier
Aircraft
N236AK
Make and model
Boeing 737990ER
Aircraft serial
36351
Aircraft time
28,590 hours, 9,307 cycles
Part
Rail
Part number
143A948535
Part serial
UNK
Condition
Corroded
Location
Zone 100
Stage of operation
IN
How discovered
V
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

FWD CARGO PIT AFT BULKHEAD LOWER SUPPORT RAIL HAS CORROSION. GROUNDED - YES. EVALUATED ORIG. THICK. =.071",REMOVED=.071" REMAINING =.000" 100% MAT. LOSS, FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-30-08-1A-1. REMOVED DAMAGED RAIL, LOCATED & DRILLED NEW RAIL P/N: 143A9455-35 P.O. 1108710.2 & INSTALLED IAW B737-900ER SRM 51-40-02, SRM 51-40-05 & BAC DWG 143A7904 REV C.