AD NUMBER: 2004-21-05
MANUFACTURER: Heaters
SUBJECT: Airworthiness Directive 2004-21-05
SUMMARY: The FAA is superseding Airworthiness
Directive (AD) 96-20-07, which applies to certain B-Series
Combustion Heaters Models B1500, B2030, B3040, and B4050 that are
installed on airplanes.