Service difficulty report · Web · Boeing 73776Q

Difficulty date
April 16, 2023
Submitted
May 31, 2023
Operation
Air carrier
Aircraft
N7815L
Make and model
Boeing 73776Q
Aircraft serial
30288
Aircraft time
60,418 hours, 35,015 cycles
Part
Web
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

CRACK INDICATION FOUND ON HORIZONTAL PRESSURE WEB LOCATED AT BS 663 AND LBL 30. ON PASSENGER CABIN. CRACK LENGTH 0.400 INCH 2023-257987<[01] ROTOTEST INSPECTION DONE ON EXISTING OPEN HOLES LOC. WITHIN REPAIR AREA PRESSURE WEB IAW SRM B737 53-40-51-2R-2 REPAIR 2 AND NDT MANUAL 51-00-00; PART 6; PROCEDURE 23. CRACK INDICATIONS NOT FOUND. TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC600D; S/N: 220272512; CAL DUE DATE: 17-DEC-23;[02] TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC600D; S/N: 220272512; CAL DUE DATE: 17-DEC-23;[03] TOOL USED: FLAPSPEED; PN: FPK-PR0-104; SN: PR0-3448; DUE DATE: 27-JUN-23.;[04] PERFORMED PERMANENT REPAIR ON HORIZONTAL PRESSURE WEB BTW STA 663.75 TO BS 685 AND LBL 30 TO LBL 60 IAW B737-700 SRM 51-40-02 AND SRM 53-40-51-2R-2 REPAIR 2; SEE INDIVIDUAL SIGN OFF BELLOW.;[05] PERFORMED PERMANENT REPAIR ON HORIZONTAL PRESSURE WEB BTW STA 663.75 TO BS 685 AND LBL 30 TO LBL 60 IAW B737-700 SRM 51-40-02 AND SRM 53-40-51-2R-2 REPAIR 2; SEE INDIVIDUAL SIGN OFF BELLOW. RII

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