Service difficulty report · Panel · Boeing 7377H4

Difficulty date
May 15, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N207WN
Make and model
Boeing 7377H4
Aircraft serial
34012
Aircraft time
52,378 hours, 31,227 cycles
Part
Panel
Condition
Damaged
Location
Fuselage
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

PANEL 621ZB I/B BONDING FASTENER HOLE IS ELONGATED / [01] IDENTIFIED MATERIAL ID PER SRM 57-41-01-0I-4 FIG.2; SHT.1; TABLE 2; ITEM 2; AND FIG.7. FOUND ELONGATED FASTENER HOLE TO BE OUT OF ALLOWABLE DAMAGE LIMITS PER SRM 57-41-01-1A-1 PAR.4A(2) STEP A. A REPAIR WILL BE ACCOMPLISHED PER SRM 51-70-05 AS DIRECTED PER SRM 57-41-012R-1 PAR.4 STEP E; AND TABLE 202.[05] PERFORMED DAMAGE REMOVAL AND PERFORMED SURFACE PREPARATION IAW SRM 51-70-05-2R-6 PARA 4. STEPS B.-D.; [06] VERIFIED DAMAGE REMOVAL.; [07] LAST SRM LISTED SHOULD BE SRM 57-41-01-2R-1; [08] VERIFIED MATERIAL ID; ALLOWABLE DAMAGE; VALIDATED SRM 51-70-05-2R-6 FOR THIS REPAIR.<BR>VERIFIED ALUMINUM FOIL REMOVAL PER SRM 51-70-14-2R-3.<BR>VERIFIED DAMAGE REMOVAL AND SURFACE PREPARATION PER SRM 51-70-05-2R-6.; [09] FABRICATED AND INSTALLED REPAIR PLIES AND ALUMINUM FOIL MESH USING BMS5-129TY2 GR5 LOT#1457261-2; BMS8-79CL3ST120 LOT#1456061-1; BMS8-336TY1CL2GR016 LOT# 1360513-1 AND BMS5-129TY4/5GR10 LOT# 1449400-1. VACUUM BAGGED 5X5 OK; CHECKED USING VACUUM GAUGE ID: ATS2545 S/N:542505520 AND SET TO CURE; USING HEATCON ID: ATS883 S/N: 15112530.; [10] REFERENCES USED IN STEP 9 ARE IAW SRM 51-70-05-2R-6 PARA 4.E.; F. AND G. AND SRM51-70-14-2R-4 PARA 6. C.; D.; H.; I.; AND K.; [11] VALIDATED WORK ACCOMPLISHED PER SRM 51-70-05-2R-6 ANDSRM 51-70-14-2R-4.; [12] FABRICATED AND INSTALLED BONDED ALUMINUM FOIL USING BMS 5-128 LOT# 1453226-1 ADHESIVE AND BMS 8-289 LOT# 1440811-1.

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