Service Bulletin A-101 Rev.G Aircraft Heater - Hartzell Engine ...

E. Approval
(1) FAA approval has been obtained on technical data in this publication that affects type
design.
F. Compliance
(1) Upgrade to I-Series Heater: At next overhaul, convert all eligible B-Series aircraft
heater models B1500, B2030, B3040, B4050, B2500, B3500, and B4500 as listed in
Chart 1 to I-Series heaters by incorporating the instructions herein.
G. Manpower
(a) All I-Series aircraft heater models I-1500, I-2500, I-3500, and I-5000 as identified
in 3.A(1) or as delivered from the HET factory are in compliance and are
approved for use per the applicable heater found in Appendix Chart 1 of this SB.
(b) All B-Series aircraft heater models B1500, B2030, B3040, B4050, B2500,
B3500, and B4500 if upgraded to I-Series models I-1500, I-2500, I-3500, and
I-5000, per instructions herein and per Appendix Table 1 are in compliance and
are approved for use per the applicable heater found in Appendix Chart 1 of
this SB.
(1) Negligible for Inspection.
(2) If I-Series upgrade is performed at overhaul, an additional one-half (1/2) man hour is
required to upgrade the heater. This does not include removal and installation which will
vary with the aircraft model and type.
H. References
CAUTION: DO NOT USE OBSOLETE OR OUTDATED INFORMATION. PERFORM ALL
INSPECTIONS OR WORK IN ACCORDANCE WITH THE MOST RECENT
REVISION OF A DOCUMENT.
(1) Aircraft/rotorcraft Service or Maintenance manual as may be applicable to your specific
make or model aircraft/rotorcraft.
(2) B-Series Aircraft Heater Maintenance & Overhaul Manual 24E25-1 Rev. D or later.
(3) B-Series Aircraft Heater Maintenance & Overhaul Manual 94E47 Rev. C or later.
I. Other Publications Affected
(1) None.
Service Bulletin
No. A-101 Rev. G
Aircraft Heater Upgrade to I-Series
SB A-101 Aug./95, Rev. G August 22/12
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