SDR ALG2004F00006

Service difficulty report · Tach Generator · Bell 206B

Difficulty date: February 4, 2004
Submitted: March 5, 2004
Operation: Air carrier
Aircraft: N2201W
Make and model: Bell 206B
Aircraft serial: 3477
Engine: Allsn 250C20B
System (JASC): 6340 · Rotor Drive Indicating System
Part: Tach Generator
Part number: 22A690
Part serial: 3046
Condition: Failed
Location: Transmission
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: A

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

What was found

DURING TAKE OFF, TACH WENT TO ZERO, LOW ROTOR LIGHT ILLUMINATED WITH LOW ROTOR HORN. RETURNED, LANDED AND NOTIFIED MAINTENANCE AND CUSTOMER. MAINTENANCE REMOVED AND REPLACED ROTOR TACH GENERATOR. AIRCRAFT GROUND RUN LEAK CHECKED AND OPS CHECKED GOOD.

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