Service difficulty report · Keelbeam · Boeing 75721B

Difficulty date
August 30, 2009
Submitted
August 31, 2009
Operation
Air carrier
Aircraft
N933FD
Make and model
Boeing 75721B
Aircraft serial
24330
Aircraft time
52,447 hours, 30,243 cycles
Part
Keelbeam
Part number
143N35801
Condition
Corroded
Location
Zone 100
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

BS 879 TO BS 900 LBL 8 KEELBEAM CORRODED. KEEL BEAM CHORD AT BS 889 FOUND CORRODED BEYOND SRM DAMAGE LIMITS. KEEL BEAM CHORD REPAIRED IAW EA F-5330-131062 (TITLE: BS 889, STR S-28L KEEL BEAM CHORD CORROSION REPAIR. REPAIR IS CLASSIFIED AS MAJOR REPAIR IAW GMM 6-2-100 CRITERIA.

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