Service difficulty report · Pressure Blkhd · Boeing 737824

Difficulty date
December 9, 2021
Submitted
December 10, 2021
Operation
Air carrier
Aircraft
N73270
Make and model
Boeing 737824
Aircraft serial
31632
Aircraft time
63,820 hours, 21,874 cycles
Part
Pressure Blkhd
Part number
111A2101
Condition
Cracked
Location
Sta663.75
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

CENTER WING REAR SPAR VERTICAL PRESSURE WEB AT STA 663.75 HAS 2 EA CRACKS AT APPROX LBL 42 ENTERED FOR SFR REPORT PERFORM HFEC INSP AT 36000 FLT CYCLES REF 737 SRM 57-10-10-2R-3 REPAR 3 TABLE 206 PAGE 8 OF 34 VERIFIED SOURCE DOCUMENT AND DIP REQUIREMENTS.