Service difficulty report · Support · Boeing 73771B

Difficulty date
November 15, 2023
Submitted
December 12, 2023
Operation
Air carrier
Aircraft
N7849A
Make and model
Boeing 73771B
Aircraft serial
29367
Aircraft time
50,414 hours, 32,679 cycles
Part
Support
Part number
UNKNOWN
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 SUPPORT ZEE BETWEEN BS 727A TO BS 787 AND LBL 21 WL 156 AFT CARGO COMPARTMENT 2023-694291<[01] REPLACED SUPPORT ZEE LOC. BTW BS 727 TO BS 847 AND LBL 21 WL 156 AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02-0G-0; SRM 51-10-02-0G-0 PARAGRAPH 9 AND DWG 146A7500 SHEET 85 REV A; DWG 149A8102 SHEET 11 REV B. SEE INDIVIDUAL SIGN OFF BELOW.;[02] CORRECTED STEP 1.<BR>REPLACED SUPPORT ZEE LOC. BTW BS 727 TO BS 847 AND REPAIR PART SPLICE SIDEPLATE (1E/A) LOC. BETWEEN BS747 TO BS767 AND LBL 21 WL 156 AFT CARGO COMPARTMENT IAW B737-700 SRM 53-00-53-2R-6 REPAIR 6 AND IAW B737-700 SRM 51-40-02-0G-0; SRM 51-10-02-0G-0 PARAGRAPH 9 AND DWG 146A7500 SHEET 85 REV A; DWG 149A8102 SHEET 11 REV B. SEE INDIVIDUAL SIGN OFF BELOW.;[03] RII COMPLETED JOB

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