Service difficulty report · Baffle · Boeing 7378H4

Difficulty date
June 1, 2023
Submitted
June 26, 2023
Operation
Air carrier
Aircraft
N8537Z
Make and model
Boeing 7378H4
Aircraft serial
63595
Aircraft time
19,945 hours, 9,824 cycles
Part
Baffle
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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

BAFFLE AT STA 500F TO 500G CRACKED<[01] REMOVED DAMAGED BAFFLE AT STA 500F TO 500G RBL 25 PER SRM 53-30-53-2R-1.;[02] VERIFIED 1. WILSON WHITT (TECHNICIAN); 03-JUN-2023 17:20 UTC<BR>REMOVED DAMAGED BAFFLE AT STA 500F TO 500G RBL 25 PER SRM 53-30-53-2R-1.;[03] PREFORMED HFEC ROTARY HOLE PROBE INSPECTION PER BOEING NDT 51-00-00 PART 6<BR>PROCEDURE 16. NO DEFECTES FOUND;[04] LOCATED AND DRILLED NEW BAFFLE PER SRM 51-40-02.;[05] FABRICATED AND DRILLED REPAIR ANGLE TREATED AND PRIMED PER SRM 53-30-53-2R-1.;[06] VERIFIED 5. WILSON WHITT (TECHNICIAN); 04-JUN-2023 22:17 UTC<BR>FABRICATED AND DRILLED REPAIR ANGLE TREATED AND PRIMED PER SRM 53-30-53-2R-1.4. WILSON WHITT (TECHNICIAN); 04-JUN-2023 22:13 UTC<BR>LOCATED AND DRILLED NEW BAFFLE PER SRM 51-40-02.;[07] REMOVED DAMAGED BAFFLE AT STA 500F TO 500G RBL 25 PER SRM 53-30-53-2R-1;[08] REJECTED ON TTG8Q00LHLEG; BAFFLE REMOVED ON CORRECTIVE ACTION #7 DUE TO NUT PLATE HOLES MISALIGNED FOR TRANSITION ANGLE; NEW REPAIR BAFFLE INSTALLED WITHOUT OK TO INSTALL. HFEC REQUIRED FOR FASTENER HOLES AT STRUCTURE ATTACH POINTS FOR BAFFLE. SECOND REPAIR BAFFLE REQUIRES INSPECTION FOR FABRICATED PARTS.;[09] FABRICATED; AND INSTALLED BAFFLE REPAIR ANGLE IAW. SRM. 53-30-53-2R-1.

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