Service difficulty report · Panel · Boeing 73776Q

Difficulty date
April 10, 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 500 Left Wing
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 561AB HAS SEVERAL PULLED FASTENER HOLE ON AFT END (MARKED)<OUT OF ALLOWABLE LIMITS IAW SRM 57-51-01-1A-1 PARA 4.B(5).REPAIRED IAW SRM 51-70-04-2R-9 PER SRM 57-51-01-2R-1 PARA 2.B(2) AND TABLE 202.REMOVED ALL DAMAGE AT FASTENER HOLES TO .5' DIAMETER; CLEANED REPAIR AREA IAW SRM 51-70-04-2R-9 PARA 4.A-C.APPLIED SLURRY MIXTURE OF BMS 8-301CL1 LOT#JH2EAA8895 AND CHOPPED FIBERS TO FASTENER HOLES; CURED WITH HEATLAMP; MONITORED WITH THERMOMETER ID:ATS2208 CAL DUE 10/2023; SANDED CONTOUR TO SURFACE AND CLEANED REPAIR AREA IAW SRM 51-70-04-2R-9 PARA 4.D-I.;[05] FABRICATED AND INSTALLED REPAIR PLIES USING BMS 9-3 TYH2 CL7 STY1581 LOT# 1522395-2 AND BMS 8-301 CL1 GR1 LOT# JH2EAA8895 IAW SRM 51-70-04-2R-9 PARA 4.J-K. VACUUM BAGGED REPAIRS. LEAK CHECKED GOOD USING VACUUM GAUGE ID: ATS2441 CAL DUE: 08/2023. SET REPAIR TO CURE BY HEAT LAMP USING THERMOMETER ID: ATS2209 CAL DUE: 10/2023 IAW SRM 51-70-04-2R-9 PARA 4.L-M.;[06] COMPLETED CURE; UNBAGGED AND TRIMMED EXCESS MATERIAL IAW SRM 51-70-04-2R-9 PARA 4.M;PLOCATED AND DRILLED FASTENER HOLES IN REPAIR AREA IAW SRM 51-70-04-2R-9 PARA 4.N.;[10] COUNTERSUNK FASTENER HOLES IAW SRM 51-70-04-2R-9 PARA 4.N;[11] APPLIED CONDUCTIVE COATING; RESISTIVITY TESTED GOOD WITH MULTIMETER ID:ATS1499 CAL DUE 11/30/23 IAW AMM 51-21-71-370-801 PARA 3.D(1-4)(7).<BR>REFINISHED PANEL IAW SRM 51-70-04-2R-9 PARA 4.P

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