Service difficulty report · Line · Beech B100

Difficulty date
May 11, 2011
Submitted
September 9, 2011
Operation
Air carrier
Make and model
Beech B100
Aircraft time
9,966 hours
Engine
Garrtt TPE3316252B
Propeller
Hartzl HCB4TN5
Part
Line
Condition
Misinstalled
Location
Nr 1 Vsi
Stage of operation
CL
How discovered
O
Nature of condition
W
Precautionary procedure
O

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

What was found

NR 1 VSI AS NOT INDICATING AFTER INITIAL CLIMB. DURING TROUBLESHOOTING AND PITOT STATIC TESTS, IT WAS OBSERVED THAT THE STATIC LINE THAT CONNECTED TO THE TEE ONTO THE BACK OF THE VSI DID A LOOP AND RE-CONNECTED TO THE OTHER SIDE OF THE SAME TEE. ESSENTIALLY THE VSI WAS ISOLATED FROM THE STATIC SYS. THE PILOTS STATIC SOURCE LINE WENT DIRECTLY TO THE AIRSPEED INDICATOR, BEFORE SPLITTING OFF TO THE ALTIMETER, WHERE IT TERMINATED. TO REPAIR THE SYSTEM, THE STATIC LINES WERE RE-ROUTED SO THAT THE STATIC SOURCE PASSED THROUGH THE VSI BEFORE CONNECTING TO THE ASI AND ALTIMETER, RESPECTIVELY. THE PILOTS STATIC SYSTEM WAS THEN FUNCTION AND LEAK CHECKED, AND FOUND TO BE WORKING PROPERLY.

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