SDR 20010305CW012

Service difficulty report · Adapter · Piper PA34200T

Difficulty date: January 25, 2001
Submitted: March 5, 2001
Operation: General aviation
Aircraft: N2240D
Make and model: Piper PA34200T
Aircraft serial: 347970032
Engine: Cont TSIO360EB
System (JASC): 7714 · Engine RPM Indicating System
Part: Adapter
Part number: 640925
Condition: Failed
Location: 90 Tach Adapter
Part time: 121 hours
Stage of operation: NR
How discovered: V
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

90 DEGREE TACH DRIVE ADAPTER PUT ON AIRCRAFT. WHEN ADAPTER FAILS, THERE IS NO RPM INDICATION TO TACH. PROBLEM, APPARENTLY VIBRATION INDUCED. SOME PROVISIONS SHOULD BE MADE TO REINFORCE UNIT , OR RELOCATE IT TO AN AREA NOT AS PRONE TO VIBRATIONS.

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