SDR 20000508SH029

Service difficulty report · Altimeter · Beech 1900D

Difficulty date: March 29, 2000
Submitted: May 8, 2000
Operation: Air carrier
Aircraft: N247GL
Make and model: Beech 1900D
Aircraft serial: UE247
System (JASC): 3416 · Altimeter, Barometric/Encoder
Part: Altimeter
Part number: 066306200
Part serial: 1866
Condition: Inaccurate
Location: Cockpit
Stage of operation: NR
How discovered: O
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

PILOT WRITE-UP WAS ''GIVES ERRONEOUS READINGS AND FAILNG TCAS''. BENCH CHECK INDICATED ENCODER PULSES B4 AND C1 INOPERATIVE AND ALTIMETER IS 50 FEET HIGH (30 FEET OUT OF LIMITS) FROM -1,000 FEET TO 2,000 FEET. UNIT WAS SENT FOR REPAIR. (X)

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