Service difficulty report · Intercostal · Boeing 7377Q8

Difficulty date
May 26, 2022
Submitted
June 16, 2022
Operation
Air carrier
Aircraft
N7876A
Make and model
Boeing 7377Q8
Aircraft serial
29355
Aircraft time
50,771 hours, 27,451 cycles
Part
Intercostal
Condition
Cracked
Location
Fuselage
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

CRACKED INTERCOSTAL AT AFT PASSENGER CABIN BS927+4; 927+9 BL0 WL208. / [01] VERIFIED APPLICABILITY OF SRM 53-70-51-01-2 FOR IDENTIFICATION AND SRM 53-70-51-1A-1 FOR ALLOWABLE LIMIT;[02] DAMAGE FOUND AT PASSENGER CABIN INTERCOSTAL ATTACH CHORD BS 927-BS 947 BL 0; WL 208 FOUND TO BE OUT OF LIMIT IAW SRM 53-70-51-1A-1 DET. 4E; FIG 103- K PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR 9C;[03] VERIFIED CORRECTIVE ACTION ENTRIES 1-2. OUT OF LIMITS.;[04] REMOVED PASSENGER CABIN INTERCOSTAL ATTACH CHORD FROM BS 927-BS 947 BL 0; WL 208 IAW SRM 51-40-02-0G-0;[05] FORMED PASSENGER CABIN INTERCOSTAL ATTACH CHORD MADE FROM 7075T0#0.063' LOT#14577375-1 IAW DWG#147A5430 REV-C;[06] VERIFIED CORRECTIVE ACTION ENTRY 5.;[07] UPDATED STEP 5 FORMED PASSENGER CABIN INTERCOSTAL ATTACH CHORD MADE FROM 7075T0#0.063' LOT#1477375-1 IAW DWG#147A5430 REV-C;[08] RECEIVED CHORD P/N 147A5430U1 LOT#1492715 LOCATED AND DRILLED AT BS 927-BS 947 BL 0; WL 208 IAW SRM 51-40-05-0G-0 AND DWG#147A5400 OK TO INSTALL;[09] VERIFIED CORRECTIVE ACTION #8.<BR>VERIFIED OK TO INSTALL REPAIR PARTS.;[10] INSTALLED PASSENGER CABIN INTERCOSTAL ATTACH CHORD P/N 147A5430-1 AT BS 927-BS 947 BL 0; WL 208 IAW SRM 51-40-02-0G-0 AND DWG#147A5400;[11] VERIFIED CORRECTIVE ACTION #10.

More about the Boeing 737-7Q8