SDR 98ZZZX2099

Service difficulty report · Governor · Bolkms BO105S

Difficulty date
November 2, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N4573B
Make and model
Bolkms BO105S
Aircraft serial
S673
Engine
Allsn 250C20B
Part
Governor
Part number
2524666713
Condition
Malfunctioned
Location
Nr 2 Engine
Part time
18,230 hours
Stage of operation
CR
Nature of condition
O
Precautionary procedure
A

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

What was found

DURING FLIGHT, NR 2 ENGINE BEGAN OSCILLATING. PILOT RETURNED TO BASE AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED ENGINE N2 GOVERNOR DUE TO STIFF CONTROL SHAFT. REF: ALLISON C-20 IPC, CHAPTER 73-20-00, FIG 2, ITEM 81.