Service difficulty report · Turbine Case · Boeing 747123

Difficulty date
October 18, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N859FT
Make and model
Boeing 747123
Aircraft serial
20326
Engine
Pwa JT9D7A
Part
Turbine Case
Condition
Cracked
Location
Nr 1 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

CRACKS IN R AND S RAILS AT 2 O'CLOCK POSITION. WELD REPAIRED AND STRESS RELIEVED PER PRATT AND WHITTNEY MAINTENANCE MANUAL 73-53-01, FLAP PEENED PER BOEING OVERHAUL MANUAL 20-10-03.