Service difficulty report · S-Rail · Boeing 747122

Difficulty date
July 17, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N851FT
Make and model
Boeing 747122
Aircraft serial
19756
Engine
Pwa JT9D7A
Part
S-Rail
Condition
Cracked
Location
Nr 4 Engine
Stage of operation
IN
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

NR 4 ENGINE S-RAIL HAS A RADIAL CRACKED AT 1:30 POSITION. WELDED AND STRESS RELIEVED IAW PRATT AND WHITNEY MM 72-53-01.