Service difficulty report · Panel · Boeing 73776Q

Difficulty date
April 16, 2023
Submitted
May 9, 2023
Operation
Air carrier
Aircraft
N551WN
Make and model
Boeing 73776Q
Aircraft serial
30280
Aircraft time
66,624 hours, 41,198 cycles
Part
Panel
Condition
Pulled
Location
Zn 600 Right Win
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 661BB HAS SEVERAL PULLED FASTENER HOLE ON AFT END (MARKED)<OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 57-51-01-1A-1 PARA 4B( REPAIRED PER SRM 51-70-04-2R-9 AS DIRECTED BY SRM 57-51-01-2R-1 PARA 4C AND TABLE 202. <BR><BR>REMOVED DAMAGE TO ALL FASTENER HOLES ON AFT EDGE AND CLEANED AREA IAW SRM 51-70-04-2R-9 PARA 4A-C APPLIED SLURRY MIX OF BMS8-301 LOT#JH2EAA8895 AND MILLED FIBERS LOT#1437038-1 TO ALL DAMAGED FASTENER HOLES IAW SRM 51-70-04-2R-9 PARA 4D-E.;[05] CURED THE SLURRY MIXTURE THEN PERFORMED THE SURFACE PREPARATION PROCEDURES IAW SRM 51-70-04-2R-9 PARA 4. STEPS F-I. REF CAL TOOL HOT BONDER ID ATS532 CAL DUE 06/2023.<BR><BR>USING BMS9-3 STYLE 1581 GLASS LOT 1522395-2 & BMS8-301 EA9390 RESIN LOT JH2EAA8895 FABRICATED REPAIR PLIES IAW SRM 51-70-04-2R-9 PARA 4. STEP J.;[06] IMPREGNATED AND INSTALLED REPAIR PLIES; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUGE ATS2441 CAL DUE DATE 08/2023 IAW SRM 51-70-04-2R-9 PARA 4J-L.;[07] CURED REPAIR USING HOT BONDER ATS532 CAL DUE DATE 06/2023; UNBAGGED AND LIGHTLY SANDED REPAIR IAW SRM 51-70-04-2R-9 PARA 4M.; LOCATED; DRILLED; AND COUNTERSUNK FASTENER HOLES IAW SRM 51-70-04-2R-9;[12] ADDING 'PARA 4.N.' TO LINE 11.;[13] APPLIED FINISH TO REPAIR AREA IAW SRM 51-70-04-2R-9 PARA 4.P.;[14] VERIFIED CORRECTIVE ACTION 11; 12; 13

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