Service difficulty report · Isolation Valve · Boeing 737217

Difficulty date
September 4, 2002
Submitted
September 12, 2002
Operation
General aviation
Make and model
Boeing 737217
Aircraft time
30,797 hours
Engine
Pwa JT8D17A
Part
Isolation Valve
Condition
Malfunctioned
Location
Bleed System
Stage of operation
NR
How discovered
O
Nature of condition
E
Precautionary procedure
O

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

What was found

(CAN) BOTH ENGINE SURGING AT CRUISE, BLEED SURGING FROM 20PSI TO 52 PSI. NR 2 ENGINE SURGING CONSIDERABLY MORE ON DESCENT.