SDR 99ZZZX263

Service difficulty report · Valve · Cessna 550

Difficulty date
December 22, 1998
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N26496
Make and model
Cessna 550
Aircraft serial
5500607
Part
Valve
Part number
KW15632H
Condition
Malfunctioned
Location
Rt Engine
Stage of operation
NR
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING FLIGHT, THE RT HAND ANTI-ICE APPEARED TO WORK NORMALLY FOR 6 MINUTES, LIGHT FLICKERED FOR 3 MINUTES, THEN REMAINED STEADY. AMMETER FOR BOTH LT AND RT GENERATORS MATCHED. LIGHT FLICKERED AT LOW AMPERAGE. TROUBLESHOOTING OF ANTI-ICE SYSTEM REVEALED STAT BLEED VALVE WAS INTERMITTENT. BLEED VALVE REMOVED AND REPLACED WITH A SECOND UNIT. IN PREPARATION FOR AN OPERATIONAL CHK, ACFT POWER WAS ON. AT THAT TIME, THE SURFACE ANTI-ICE CIRCUIT BREAKER TRIPPED. INSPECTION FOUND STATOR BLEED VALVE WAS SHORTED INTERNALLY. THIS STATOR BLEED VALVE REMOVED AND REPLACED WITH ANOTHER SERVICEABLE UNIT. SYS OPER CHECKED GOOD.

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