Service difficulty report · Support Fitting · Boeing 7377H4

Difficulty date
July 9, 2022
Submitted
August 19, 2022
Operation
Air carrier
Aircraft
N202WN
Make and model
Boeing 7377H4
Aircraft serial
33999
Aircraft time
58,974 hours, 35,001 cycles
Part
Support Fitting
Condition
Corroded
Location
Fwd Entry Door
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 FED GIRT BAR LATCH SUPPORT FITTING BS312 LBL9. MARKED. / [01] PITTING CORROSION EXCEEDS 50% OF MACHINED THICKNESS ON UPPER SURFACE OF FITTING. SRM DOES NOT HAVE ALLOWABLE DAMAGE LIMITS FOR GIRT BAR LATCH FITTINGS. R&R IAW SRM 51-10-02-0G-0 STEP 9.;[02] UPDATED MEASUREMENT TABLE;[03] VERIFIED CORRECTIVE ACTION #1 AND MEASUREMENT TABLE;[04] REMOVED FED GIRT BAR FITTING AT B.S. 312 LBL56 IAW SRM 51-40-02-0G-0;[05] OK TO INSTALL FED FWD GIRT BAR FITTING M;[06] VERIFIED CORRECTIVE ACTION 5. OK TO INSTALL NEW GIRT BAR SUPPORT FITTING.;[07] INSTALLED FED FWD GIRT BAR FITTING IAW SRM 51-40-02-OG-0 AND AIPC 53-42-00-29 .;[08] VERIFIED CORECTIVE ACTION 7.;[09] REMOVED AND REPLACED FED FWD BS312 LBL9. GIRT BAR LATCH SUPPORT FITTING IAW SRM 51-40-02-0G-0 AND AIPC 53-42-00-29 .<BR>SCREW GUN USED ATS547 SERIAL # UNKNOW DUE DATE 02/2023 <BR>ALL AMT BLOCKS COMPLETED .;[10] VERIFIED CORRECTIVE ACTION 9;[11] WORKSCOPE COMPLETE.

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