Service difficulty report · Altimeter · Bell 412

Difficulty date
January 26, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N2149S
Make and model
Bell 412
Aircraft serial
36002
Part
Altimeter
Part number
212070238003
Condition
Failed
Location
Cockpit
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

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

What was found

WHEN DECREASING ALTIMETER KOLLSMAN WINDOW, NEEDLE MOVEMENT JUMPS 200 FEET AT 29-90. ADJUSTMENT KNOB IS STIFF AND RATCHETY AT DIFFERENT SETTINGS.

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