Service difficulty report · Support · Boeing 73776N

Difficulty date
January 31, 2023
Submitted
March 6, 2023
Operation
Air carrier
Aircraft
N7885A
Make and model
Boeing 73776N
Aircraft serial
33379
Aircraft time
62,518 hours, 31,343 cycles
Part
Support
Condition
Corroded
Location
Zn 100 Fus Lower
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 AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727A+6; BS 727B+14; BS 727D+8; BS 727D+14; BS 727E+6; BS 747+7.<[01] VERIFIED APPLICABILITY SRM 53-60-53-0I-2 IDENTIFICATION 2 AND SRM 53-00-53-1A-2 ALLOWABLE DAMAGE;[02] PARTIAL STEP 1 TO 6;[03] VERIFIED CORRECTIVE ACTION STEPS 1 AND 2.;[04] THIS TASK CARD WILL BE ACCOMPLISHED WITH THE CUSTOMER CARD # TTG8Q00HKEP;[05] THIS TASK CARD WILL BE ACCOMPLISHED WITH THE CUSTOMER CARD # TTG8Q00HKEPC;[06] VERIFIED FLOOR TO SIDEWALL REWORK WILL BE ACCOMPLISHED ON FAULT# TTG8Q00HKEPC. VERIFIED THE MEASUREMENT TABLE.

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