WPR13CA301 · Cessna 170B
Cessna 170B · Accident: aerodynamic stall/spin during takeoff
From Fallbrook Community Airpark (L18) to Corona Municipal Airport (AJO)
Event
- NTSB case
- WPR13CA301
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Cessna 170B
- Aircraft type
- Cessna 170
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N2600D
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Fallbrook Community Airpark (L18), Fallbrook, CATo Corona Municipal Airport (AJO), Corona, CA
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Takeoff
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Aerodynamic stall/spin
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot intended to perform a short-field takeoff in the tailwheel equipped airplane for both practice, and as a demonstration to the passenger. His intention was to climbout at the airplane's best angle of climb airspeed (48 mph). He stated that the airspeed indicator was not accurate at low airspeeds, and that an indicated airspeed of 40 mph was actually 50 mph true. He selected 20 degrees of flaps, and observed the angle of wind vary during both the run-up, and while lining the airplane up on the runway. As he began the takeoff roll, the wind moved to a direct headwind, and he initiated rotation at an indicated airspeed of 40 mph. He maintained that airspeed, and once they reached an altitude of 150 feet agl, the airframe began to shudder. The airplane began to descend, and he applied forward elevator control in an effort to regain control. After doing so, the runway came into view, and concerned that they might collide with the ground, he released elevator pressure. The airplane subsequently settled just left of the runway and ground looped, coming to rest on its nose. The pilot stated that the accident could have been avoided if he increased the takeoff airspeed to counter for the wind conditions, and applied more down elevator pressure during the subsequent recovery. The airplane sustained substantial damage to both wings, and the pilot reported no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.
Probable cause
The pilot’s failure to maintain adequate airspeed during the takeoff, and his loss of aircraft control during the subsequent stall recovery.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR13CA301
- Event ID
- 20130630X83628
- Case number
- WPR13CA301
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: e53f147aca37456735dc1cb4f05b97653bf9857863e4d44537f946d4a8ddc11a; retrieved 2026-09-15T22:02:13.299Z.