Service difficulty report · Bulkhead Web · Boeing 7377H4

Difficulty date
August 17, 2021
Submitted
August 31, 2021
Operation
Air carrier
Aircraft
N965WN
Make and model
Boeing 7377H4
Aircraft serial
36677
Aircraft time
32,936 hours, 20,041 cycles
Part
Bulkhead Web
Condition
Cracked
Location
Bs 663
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

RIGHT HAND B.S. 663 VAPOR BARRIER HAS A CRACKED FASTENER HOLE AT O/B EDGE ; / IDENTIFIED B.S. 663 RIGHT HAND VAPOR BARRIER MATERIAL IAW SRM 57-10-10-0I-2 TABLE 2 FIGURE 2 ITEM 4. DAMAGED FASTENER HOLE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM 57-10-10-1A-2 PARAGRAPH 4.D(1). DAMAGE IS REPAIRABLE PER SRM 51-70-04-2R-10 DIRECTED BY SRM 57-10-10-2R-2. <BR><BR>REMOVED .75' X .75' AREA OF DAMAGED SKIN AT DISCREPANT LOCATION AND PREPARED AREA FOR REPAIR PLIES. FABRICATED REPAIR PLIES FROM BMS9-3 STYLE 1581 LOT# 1458851-1. OKAY TO INSTALL REPAIR PLIES IAW SRM 51-70-04-2R-10 PARAGRAPH 4. A-D.; [02] VALIDATED REPAIR IAW SRM 51-70-04-2R-10; [03] VERIFIED CORRECTIVE ACTION 1 PER SRM 57-10-10-0I-2; SRM 57-10-10-1A-2; AND SRM 51-70-04-2R-10 <BR> <BR>VALIDATED REPAIR IAW SRM 51-70-04-2R-10 <BR>OK TO INSTALL REPAIR PLIES; [04] INSTALLED REPAIR PLIES USING RESIN BMS8-301 CL2 LOT#1464454-1; VACUUM BAGGED REPAIR; LEAK CHECKED GOOD USING VACUUM GAUGE ID: ATS2107 SN: UNKNOWN; AND SET TO CURE IAW SRM 51-70-04-2R-10 PARAGRAPH 4.D-E. VERIFIED CORRECTIVE ACTION 4 PER SRM 51-70-04-2R-10;CURED REPAIR PLIES USING THERMOMETER ID: ATS2208 SN: 43300740WS AND VACUUM GAUGE ID: ATS2107 SN: UNKNOWN; REMOVED VACUUM BAG; AND LIGHTLY SANDED IAW SRM 51-70-04-2R-10 PARAGRAPH 4.F VERIFIED CORRECTIVE ACTION 6 PER SRM 51-70-04-2R-10 UT INSPECTED POST CURE IAW 737 NDTM PART 4 51-00-02; NO DISBONDS NOTED. EQUIP ID#: ATS2341 S/N: 190848104 REFINISHED REPAIR AREA IAW SRM 51-70-04-2R-10 PARA 4H.

More about the Boeing 737-7H4