Service difficulty report · Skin · Boeing 737824

Difficulty date
March 31, 2022
Submitted
April 1, 2022
Operation
Air carrier
Aircraft
N79521
Make and model
Boeing 737824
Aircraft serial
31662
Aircraft time
37,353 hours, 12,681 cycles
Part
Skin
Part number
2024T3071
Condition
Cracked
Location
Sta129.5
Stage of operation
IN
How discovered
V
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

2 EA CRACKS AT STA 129.5 INBOARD OF REPAIR DOUBLER NO. 2 INDICAT IONS MARKED ON SKIN AT LEFT HORIZONTAL STABILIZER LOWER SKIN SUR FACE (REF. AAR NR 99925176). 390-804; PERFORMED NDT IAW B737 PAR6 51-00-00 (WORK ACCOMPLISHED BY V931931 AND AAR QC A-68 V936245). REPAIRED 2EA CRACKS AT L/H HORIZONTAL STAB LOWER SKIN AT STA 129 .5 I/B OF THE PREVIOUS REPAIR DOUBLER ALL WORK DONE IAW B737-800 SRM 55-10-01-2R-11;SRM 51-40-02-0G-0;SRM 51-40-06-0G-0;SRM 51-40 -05-0G-0;AMM 51-21-41-370-803;AMM 51-21-72-370-804;AMM 51-31-00- INITIATE DIP FOR REINSPECTION THRESHOLD REF SRM 55-10-01-2R-11 STEP 5 TABLE 204 @56000 TOTAL CYC, DVI & LFEC @ 9000 CYC INTRVAL INITIATE DIP FOR REINSPECTION THRESHOLD REF SRM 55-10-01-2R-11 TOMC-APPROVAL FROM SC1ELBYC COMMENT STEP 5 TABLE 204 @56000 TOTAL CYC, DVI & LFEC @ 9000 CYC INTRVAL QC REVIEWED QC REVIEWED RIR: 9,000 FC T/A: 56,000 TAFC...SP/U366013 RECORDS UPDATE...SP