4-15. PILOT’S CHECK OF IDLE MIXTURE, IDLE SPEED, AND
FUEL BOOST PUMP (cont)
NOTE: The first check (throt tle into full over ride)
should pro duce an idle speed no less than 1400 rpm.
The sec ond check (throt tle at nor mal idle stop) should
pro duce an idle speed no greater than 1600 rpm.
If en gine idle speed is not within the re quired lim its, no tify the ap -
pro pri ate main te nance per son nel to per form ad just ments in ac cor -
dance with the Ba sic HMI.
Perform a fuel boost pump check.
Op er ate he li cop ter at idle rpm with fuel boost pump ON.
Turn fuel boost pump OFF while ob serv ing en gine ta chom e ter.
If a change in en gine rpm is ob served, ground he li cop ter and trou -
ble shoot fuel sys tem.
NOTE: Any no tice able change in en gine rpm is un ac -
cept able and must be en tered in the He li cop ter Log
Book.
4-16. POST FLIGHT REQUIREMENTS
Brief PAX on exit safety.
Shutdown in accordance with Paragraph 4-14 & 4-15.
Service aircraft as required.
Notify maintenance of discrepancies.
Secure aircraft as required.
4-17. OPTIONAL HEATER OPERATION
Exhaust cabin (muff) heater (optional, see Table 9-3).
Heater may be used dur ing all op er a tions.
Check that HEATER (blower) cir cuit breaker is in.
CAU TION
BLOWER MUST BE ON DURING ALL ENGINE
OPERATION. OPERATION WITH BLOWER OFF
MAY CAUSE DAMAGE TO EXHAUST STACKS OR
HEATER ASSEMBLY.
Po si tion push-pull con trol to reg u late cabin tem per a ture.
Normal Procedures
Pilot's Flight Manual
4-24
Reissued:
16 Jan 2019
This Document contains technical data subject to EAR. See WARNING and classifications on first page.
SCHWEIZER
Model 269C Helicopter
FAA Approved
CSP Book 1 CSP-C-1.indd 112
8/4/19 12:45 PM