Service difficulty report · Gasket · Boeing 727222

Difficulty date
January 11, 2000
Submitted
October 4, 2000
Operation
Air carrier
Aircraft
N7460U
Make and model
Boeing 727222
Aircraft serial
21914
Aircraft time
56,008 hours, 32,110 cycles
Engine
Pwa JT8D15
Part
Gasket
Condition
Missing
Location
Nr 1 Engine
Stage of operation
NR
How discovered
O
Nature of condition
W, M, J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NR 1 STRUT OVERHEAT LIGHT ON, BLEEDS ON AND BLEEDS OFF. PULLED THROTTLE BACK TO IDLE AND SHUT BLEED OFF AND LIGHT EVENTUALLY WENT OUT. INCREASED THROTTLE TO APPROXIMATELY 92 PERCENT AND LIGHT CAME ON AGAIN. RETURNED TO AUS. *S/D* MASSIVE LEAKS WERE FOUND AT THE MODULATOR VALVE HARD SENSING LINE AND THE 13TH STAGE VALVE. REPAIRED LEAKS. REPLACED MISSING GASKET AT THE 13TH STAGE CHECK VALVE AND REPLACED THE OVERHEAT SENSING ELEMENT.