T-45C TS, ADV & IUT ENG-18
OBOGS & ECS/Pressurization System Malfunctions
IV. Cabin altimeter failure 1.8.1.4.2.3
A. Indications: needle freezes or reads erroneous altitude
B. Verifications
1. As aircraft climbs and descends, cabin altimeter does not show true
cabin altitude changes
2. Check with aft cockpit, if possible
C. Effects on flight safety: pilot unable to confirm cockpit altitude to check
for proper pressurization
Original (9-98)
Page 18-5
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