SDR MALA060451

Service difficulty report · Bleed Valve · Saab 340B

Difficulty date
July 4, 2006
Submitted
July 5, 2006
Operation
Air carrier
Aircraft
N442XJ
Make and model
Saab 340B
Aircraft serial
340B442
Aircraft time
18,700 hours, 20,397 cycles
Engine
Ge CT79B
Part
Bleed Valve
Part number
7858023
Part serial
9803118
Condition
Malfunctioned
Location
Engine
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

DURING TREND CHECK NOTED DELTA DELTA T SHIFT OF 43. COMPLIED WITH QRH. RESET TO VALUES AND DELTA DELTA T REMAINED THE SAME NG. AVOIDANCE RANGE OF 80-84 AND 94-98 WERE AVOIDED. HOWEVER NG WAS AT 90 PERCENT FOR APPROX 5 MINUTES DURING TREND CHECK. INSPECTED INLET FOUND NO BLOCKAGE. FOUND RT BLEED VALVE STRUT SHUT. REPLACED RT BLEED VALVE, PN 785802-3, SN ON 9610013, SN OFF 9803118. OPS CHECK GOOD

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