Service difficulty report · Former · Boeing 7377H4

Difficulty date
August 12, 2021
Submitted
September 14, 2021
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
53,758 hours, 31,898 cycles
Part
Former
Condition
Chafed
Location
Fairing
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

FAIRING FORMER BS663 TO BS 673 LBL28 WL 142 IS CHAFFED ON THE LOWER SIDE OF FORMER ; / [01] EVALUATED CHAFFING DAMAGE ON FAIRING FORMER BS 663-673 LBL 28 WL 142; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN SRM; AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0.; [02] REMOVED FAIRING FORMER AT BS 663-673 LBL 28 WL 142 PER SRM 51-40-02.; [03] LOCATED AND DRILLED NEW FAIRING FORMER PER SRM 51-40-05 AND DWG 149A7216 SH 7;8. OK TO INSTALL.; [04] VERIFIED LOCATE AND DRILL OF FAIRING FORMER PER SRM 51-40-05 AND DWG 149A7216 SH 7;8. OK TO INSTALL-; [05] INSTALLED NEW FAIRING FORMER AT BS 663-673 LBL 28 WL 142; PER SRM 51-40-02 AND DWG 149A7216 SH 7;8.; [06] VERIFIED THE INSTALLATION OF FAIRING FORMER AT BS 663-673 LBL 28 WL 142; PER SRM 51-40-02 AND DWG 149A7216 SH 7;8

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