Service difficulty report · Air Data Module · Bolkms BK117C2

Difficulty date
September 15, 2025
Submitted
September 15, 2025
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
9297
Aircraft time
5,531 hours
Part
Air Data Module
Part number
C17027DA01
Part serial
3013
Condition
Inaccurate
Location
Nav System
Stage of operation
TX
How discovered
V
Nature of condition
F
Precautionary procedure
C

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

What was found

COPILOT ALTIMETER HAS 80 FOOT ERROR. 30.15 READ IN KOLSMANN WINDOW WITH FIELD ELEVATION OF 301 SET. CURRENT ALTIMETER AT TIME OF CHECK WAS 30.07. REMOVED AND REPLACED #1 ADC IAW 34-11-00, 4-1.