Service difficulty report · Failsafe · Boeing 747123

Difficulty date
July 2, 2006
Submitted
August 16, 2006
Operation
Air carrier
Aircraft
N676UP
Make and model
Boeing 747123
Aircraft serial
20101
Aircraft time
83,907 hours, 23,132 cycles
Engine
Pwa JT9D7A
Part
Failsafe
Condition
Cracked
Location
Bs 840
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

INSPECTION TYPE-C M/D LT BS840 FRAME TENSION TIE ATTACHMENT AREA FOUND 1 EA HOLE CRACKED AT FAIL SAFE CHORD. M/D LT BS840 FAIL SAFE CHORD REPAIRED AT S6L AND STR7L AREA IAW SRM 51-40-03 FIG2 AND RS R53-25-35526 SHEET 1 ITEM 4 AND UPS EO B747-5310-24756-A.