Service difficulty report · Firewall · Boeing 747122

Difficulty date
March 17, 2002
Submitted
March 19, 2002
Operation
Air carrier
Aircraft
N854FT
Make and model
Boeing 747122
Aircraft serial
19754
Aircraft time
86,010 hours, 21,447 cycles
Part
Firewall
Condition
Cracked
Location
Nr 3 Pylon
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

CRACK ON CLOSURE BULKHEAD FIREWALL, NR 3 PYLON UNDER SLOT SEAL AREA. CRACK RUNS VERTICALLY APPROX 5 INCHES THEN SPLITS TO INBOARD SIDE. REPAIR CARRIED OUT REF SRM 54-10-03. CRACK STOP DRILLED PER SRM 51-10-01.