SDR SWAA2022021191585

Service difficulty report · Angle · Boeing 7377BD

Difficulty date: March 8, 2018
Submitted: February 14, 2022
Operation: Air carrier
Aircraft: N7728D
Make and model: Boeing 7377BD
Aircraft serial: 33925
Aircraft time: 39,740 hours, 19,617 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Angle
Condition: Corroded
Location: Aft Cargo Bay
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* (AFT CARGO) CORROSION AROUND FASTENER HOLES ON L-ANGLE ON LOWER MAIN SILL R/H BETWEEN STA. 767 AND 790 RBL 21.0 / REMOVED AREAS 2EA AREA 1 IS 2.35'L X .90'W AREA 2 IS 2.30'L X .90W BOTH FROM AROUND FASTENER HOLES BOTH FOUND OUT OF LIMITS IAW SRM 51-10-02-0G-0 STEP 9-C LOCATED AND DRILLED NEW 'L' ANGLE P.O.# 7560094-04 P/N# 146A8123U20 I.A.W. SRM 51-40-02-0G-0 AND DRAWING # 146A8125 INSTALLED NEW 'L' ANGLE IAW SRM 51-40-02-0G-0 AND DRAWING # 146A8125 80644U 13MAR18

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