Service difficulty report · Bulkhead · Boeing 757222

Difficulty date
March 21, 2007
Submitted
March 27, 2007
Operation
Air carrier
Aircraft
N594UA
Make and model
Boeing 757222
Aircraft serial
28145
Aircraft time
34,939 hours, 12,834 cycles
Engine
Pwa PW2037
Part
Bulkhead
Condition
Buckled
Location
Fuselage
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

AFT PRESSURE BULKHEAD STA 1720 HAS A BUCKLE IN ITS WEB, ABOUT ONE QUARTER INCH DEFLECTION BY 18 INCHES LONG. FIVE INCHES FROM THE BOTTOM, BETWEEN THE TWO VERTICAL BEAMS AT LBL 9.20 AND RBL 9.20 DAMAGE TO FOLLOWING AREAS: GOUGES STA 1720 STR 29L TO OUTBOARD STR 29R DEEP GOUGE, 4 INCH CRACK STA 1743 BETWEEN STR 29L & 29R. GOUGES FROM STA 1720 TO 1780 OUTBOARD STR 29L TO OUTBOARD OF 29R. FUS FRAME SHEAR TIE STA 1743 BENT STR 29L & 29R. [06-14-07] MAJOR REPAIR ACCOMPLISHED. CHORD REPAIRS 3 EA ARE PERMANENT REPAIRS, AFT SKIN REPLACEMENT WAS A PERMANENT REPAIR. FORWARD SKIN REPAIR WAS CATEGORY B INTERIM REPAIR PER UA ENGINEERING SPECIFICATIONS.