TOMARK, s.r.o.
Airplane Maintenance Manual
Chapter 05 Inspection and Maintenance
Page 46
Issue: 04.APR 2016
Scheduled Inspection
(50 h)
100 h/
annual
as
specified
Check fuel cap for condition and proper operation.
○
Drain fuel at fuel tank bottom.
○
Remove drain valve and inspect for sediment
200h/
2 Years
Fuel Lines, Hoses and Elements
Inspect fuel lines and hoses for damage, leakage and proper
routing.
○
Visually inspect fuel selector valve for leakage.
○
○
When refilling system after complete drain (aircraft in level
attitude):
Check indication and low level warning operation.
Indicator must not start indication of usable fuel when total
fuel quantity in system is below published unusable quantity
of 5 Liter per side. Low level warning must trigger at steady
quantity of 10 Liter per side.
500h/
5 years
Instruments
Check instruments for condition, security and proper
markings. (Instrument dials or markings may not be
excessively faded out due to sunlight.)
○
Check instrument lines and wiring for condition, proper
routing, and security.
○
Check Pitot-static system for condition, proper installation
and security.
○
Check Pitot-static system moisture traps, clean as required.
○
Perform Pitot-static system leak test:
Pitot: pressurize to 100 KIAS, allowable drop 5 knots/min
Static: evacuate to 1000 ft., allowable drop 100 ft./min.
Note: allow vertical speed indicator (on EFIS) to stabilize
before taking measurement. Most likely points of leakage are
the instruments themselves and hose connections.
200h/
2 Years