Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
June 21, 2022
Submitted
July 29, 2022
Operation
Air carrier
Aircraft
N428WN
Make and model
Boeing 7377H4
Aircraft serial
29844
Aircraft time
66,134 hours, 39,057 cycles
Part
Fitting
Condition
Cracked
Location
Vert. Stab.
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

VERTICAL FIN; TERMINAL FITTING ASSY. LOWER AFT TRAILING EDGE SPRING ANGLE 2EA. CRACKS NOTED. (DOT 223-001). / [01] REMOVED ON VERTICAL FIN TERMINAL FITTING ASSY. LOWER AFT TRAILING EDGE SPRING ANGLE IAW B737 SRM 51-40-02-0G-0.;[02] VERIFIED 1;[03] LOCATED AND DRILLED NEW SPRING AT VERTICAL ;TERMINAL FITTING ASSY LOWER T/E SPRING ANGLE IAW B737 SRM 51-4- 05-0G-0.;[04] VERIFIED STEP #3;[05] OK TO INSTALL SPRING ANGLE P/N 176A3101U26;[06] INSTALLED AT VERTICAL FIN ;TERMINAL FITTING ASSY .LOWER AFT T/E SPRING ANGLE IAW B737 SRM %1-40-02-0G-0.;[07] REMOVED ON VERTICAL FIN TERMINAL FITTING ASSY. LOWER AFT TRAILING EDGE SPRING ANGLE IAW B737 SRM 51-40-02-0G-0. LOCATED AND DRILLED NEW SPRING AT VERTICAL ;TERMINAL FITTING ASSY LOWER T/E SPRING ANGLE IAW B737 SRM 51-4- 05-0G-0. INSTALLED AT VERTICAL FIN ;TERMINAL FITTING ASSY .LOWER AFT T/E SPRING ANGLE IAW B737 SRM 51-40-02-0G-0.;[08] PART TRANSACTION;[09] VERIFIED ALL STEPS COMPLETED.;[10] VERIFIED ALL STEPS COMPLETED.

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