FAA · Type Certificate Data Sheet

TCDS A1SW

The Dee Howard Company

Current Aircraft Large Airplane Rev 3 07/17/1967 drs.faa.gov ↗

Models covered (1)

Special Airworthiness Information Bulletins (2)

Advisory bulletins on these airframes. Not mandatory like ADs — but operators tracking AD compliance often miss the SAIB on the same component.

NM-14-08 Fuselage: Aerodynamic Fairings
CE-12-19 Fuel: Aircraft Fuel System on Cessna Model 500/501/550 Airplanes

Special Conditions + ELOS findings

Certification-time deviations: SCs add requirements where the design is novel; ELOS allows alternative compliance. Most modern types have both.

ELOS ST5826NY-T-P-1 Digital Display of Engine High Pressure Rotor Speed
ELOS ST0757AK-T-S-1 FlightLogic System

The TCDS PDF on drs.faa.gov is the authoritative document for design-as-certified weight limits, performance, equipment, AD compliance times, and operating limitations. Open on drs.faa.gov ↗ DRS frequently breaks — when it does, the fleet view above and the cross-links below are usually what you actually need.