Service difficulty report · Attach Angle · Boeing 73776Q

Difficulty date
January 12, 2023
Submitted
February 16, 2023
Operation
Air carrier
Aircraft
N565WN
Make and model
Boeing 73776Q
Aircraft serial
30282
Aircraft time
56,383 hours, 37,305 cycles
Part
Attach Angle
Condition
Corroded
Location
Zn 800 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 PASSENGER CABIN DOOR WEB ATTACH ANGLE AT BS 295 STRINGER 12L.(MARKED)<[01] EVALUATED DAMAGE ON PASSENGER CABIN DOOR WEB ATTACH ANGLE AT BS 295 S-12L AFTER FURTHER EVALUATION FOUND TO BE OUT OF LIMITS; DUE NOT LIMITS IN SRM PART WILL BE REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0;[02] REMOVED PASSENGER CABIN DOOR WEB ATTACH ANGLE AT BS 295 S-12L IAW SRM 51-40-02-0G-0;[03] VERIFIED STEP 2 AND VERIFIED MEASUREMENT FIELD;[04] REFER TO FAULT TTG8Q00H7MSH WHERE EA 23-153-00290 WAS ADDED AS A SUBTASK;[05] LOCATED AND DRILLED NEW DOOR STOP INTERCOSTAL CLIP IAW SRM 51-40-05-0G-0 AND DRAWING#141A8184 REFER TO EA# 23-153-00290-WIP1 STEP 3.<BR>OK TO TREAT AND PRIME.;[06] VERIFIED CORRECTIVE ACTIONS STEPS 4;5; OK TO TREAT AND PRIME GIVEN.;[07] APPLIED CHEMICAL CONVERSION COATING AND PRIME ON NEW DOOR STOP INTERCOSTAL CLIP IAW AMM 51-21-41-370-802 AND AMM 51-21-72-370-804.;[08] OK TO INSTALL NEW PART;[09] VERIFIED CORRECTIVE ACTION STEPS 7 AND 8. VERIFIED OK TO INSTALL.;[10] INSTALLED NEW PASSENGER CABIN DOOR WEB ATTACH ANGLE AT BS 295 S-12L; IAW SRM 51-40-02-0G-0 DWG 141A8180; CARD IS COMPLETED;[11] VERIFIED CORRECTIVE ACTION STEP 10.;[12] REPLACEMENT OF WEB ATTACH ANGLE ACCOMPLISHED IAW 23-153-00290 (N565WN - ATS(PAE) - REPAIR - FWD DOORSTOP INTERCOSTAL CLIPS AT BS 294.5; STR 9L & STR 12L ? MATERIAL SUBSTITUTION);[13] VERIFIED CORRECTIVE ACTION ITEMS AND MEASUREMENT FIELDS; CARD COMPLETE.

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