Service difficulty report · Strap · Boeing 7377H4

Difficulty date
May 12, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
37,902 hours, 23,158 cycles
Part
Strap
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 FOUND IN STRAP AT BS727B WL207 RBL 45.5 FASTENER HOLE LOCATION A<[01] VERIFIED APPLICABILITY OF SRM 53-00-52-1A-1 ALLOWABLE DAMAGE 1 - SEAT TRACKS;[02] REMOVED STRAP COMMON TO SEAT-TRACK STA-727B RBL-45 WL207 IAW SRM 51-40-02-0G-0.;[03] LOCATED AND DRILLED NEW STRAP P/N: 146A5342-26 IAW SRM 51-40-05-0G-0 AND DRAWING#146A5300.<BR>OK TO INSTALL.;[04] VERIFIED CORRECTIVE ACTIONS STEP 3; OK TO INSTALL GIVEN.;[05] INSTALLED NEW STRAP IAW SRM 51-40-02-0G-0 AND DWG#140A9861; 146A5300.;[06] PARTIAL STEP 1;[07] NO FOUND ALLOWABLE DAMAGE FOR CRACK ON STRAP AT STA-727B RBL45 WL207; PART REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9.C;[08] VERIFIED CORRECTIVE ACTIONS STEP 5.;[09] VERIFIED CORRECTIVE ACTIONS STEP 7.;[10] UPDATE ITEM 1 ON ITEM 7;[11] VERIFIED MEASUREMENTS TABLE.;[12] UPDATED STEP;[13] PARTIAL UPDATE STEP 1;[14] COMPLETED ALL MAINTENANCE ACTIONS.;[15] COMPLETED STEP 1

More about the Boeing 737-7H4