Compare
Cessna 140 vs Cessna 170B
The two side by side, from the FAA registry, the FAA's Airworthiness Directives and Service Difficulty Reports, and the NTSB's accident database. Each has a full guide: Cessna 140, Cessna 170B.
Where they differ
- The Cessna 170B fleet is younger: half of those registered were built by 1953, against 1946 for the Cessna 140.
- Most Cessna 140s have the Continental C85; most Cessna 170Bs the Continental C145.
- The Cessna 170B carries more airframe ADs with a repeat action, 1 against 0: inspections that come back for as long as the AD applies.
- Mechanics report the Cessna 140's engine (reciprocating) most, and the Cessna 170B's reciprocating engine cylinder section.
Side by side
| Cessna 140 | Cessna 170B | |
|---|---|---|
| Registered in the US | 1,581 | 1,288 |
| Built | 1946 to 1949 | 1952 to 1956 |
| Half built by | 1946 | 1953 |
| Seats | 2 | 4 |
| Most common engine | Continental C85 | Continental C145 |
| Typical cruise fuel burn | 5 gal/hr | Not set |
| Engine overhaul intervalThe engine maker's published hours between overhauls. | 1,800 hr | Not set |
| Current airframe ADs | 15 | 10 |
| Airframe ADs with a repeat action | 0 | 1 |
| Current ADs on the main engine | 4 | 2 |
| Service Difficulty ReportsSince the year shown in each guide; per 1,000 registered today. | 4 (2.5 per 1,000) | 3 (2.3 per 1,000) |
| Most-reported system | Engine (Reciprocating) | Reciprocating Engine Cylinder Section |
| Accidents since 2008Per 1,000 registered today, not per hour flown: a training fleet flies far more than a private one. | 127 (80.3 per 1,000) | 108 (83.9 per 1,000) |
| Fatal accidents since 2008 | 12 | 7 |
| Most common accident | Loss of control on ground | Loss of control on ground |
Report and accident counts are not rates: nobody publishes the hours each model flies, and a training fleet flies far more than a private one. Fuel burn is a typical cruise figure; the engine interval is its maker's published figure for the usual engine.
The Cessna 140's repeat-action ADs
No current airframe AD mentions a repeat action.
Every AD for the Cessna 140The Cessna 170B's repeat-action ADs
- 2011-10-09Requires retaining all of the actions from the previous AD and adding steps to the inspection procedures in the previous AD
Questions
- Which has more Airworthiness Directives, the Cessna 140 or the Cessna 170B?
- 15 current ADs name the Cessna 140 airframe and 10 the Cessna 170B; 0 and 1 of them have a repeat action.
- Which is newer, the Cessna 140 or the Cessna 170B?
- Half of the Cessna 140s registered were built by 1946, half of the Cessna 170Bs by 1953.
- How do the Cessna 140 and Cessna 170B accident records compare?
- 127 accidents since 2008 for the Cessna 140 (12 fatal) against 108 for the Cessna 170B (7 fatal), from fleets of 1,581 and 1,288. Counts, not rates per hour flown.