- Date
- April 22, 2011, 18:45 local (22:45 UTC)
- Place
- Westfield, MA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Standing
- Aircraft
- N10674Piper J3C-65
- Defining event
- Standing-engine(s) start-up: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 3, 2011
- Report
- Approved by Office Director
- NTSB office
- Eastern Region Aviation
- Parties
- FAA/FSDO
- FAA report
- 20110422012151A
- Case key
- 78948
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's sole reliance on the passenger for securing the airplane during the engine start and the passenger's inability to maintain braking after the engine started.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot stated that he was hand-propping the airplane, as it was not equipped with an electric starter. A passenger, who had flown with him twice since the previous fall, was sitting in the front seat. The pilot instructed the passenger to hold the heel brakes with her toes, and initially verified her ability to do so by pushing on the propeller hub. He then returned to the cockpit area and explained the application of full-aft elevator stick to prevent propeller airflow from raising the tail, and the use of the throttle, which he opened 1/8 to 1/4 inch for the start. The pilot also explained the use of the magnetos, had the passenger turn the magneto switch through the "Both" and "Off" positions twice, and advised her that if anything went wrong, to switch the magnetos off. After priming the engine, the pilot confirmed that the brakes were set by attempting to push the airplane from the propeller hub, then confirmed elevator movement when the control stick was fully aft. The pilot threw the propeller and on the third attempt the engine caught. As the pilot walked around the wing tip to get into the airplane, the airplane began rolling. He called out for the passenger to turn off the magnetos; however, the airplane rolled into a parked airplane. The pilot did not note any mechanical anomalies with the airplane, nor did he indicate the use of any other airplane securing devices such as chocks or a tail tie-down.
Factual narrative
The pilot stated that he was hand-propping the airplane, as it was not equipped with an electric starter. A passenger, who had flown with him twice since the previous fall, was sitting in the front seat. The pilot instructed the passenger to hold the heel brakes with her toes, and initially verified her ability to do so by pushing on the propeller hub. He then returned to the cockpit area and explained the application of full-aft elevator stick to prevent propeller airflow from raising the tail, and the use of the throttle, which he opened 1/8 to 1/4 inch for the start. The pilot also explained the use of the magnetos, had the passenger turn the magneto switch through the "Both" and "Off" positions twice, and advised her that if anything went wrong, to switch the magnetos off. After priming the engine, the pilot called out, "brakes - set," and again confirmed them by attempting to push the airplane from the propeller hub, then called out, "stick - back," and confirmed elevator movement. The pilot threw the propeller, and on the third attempt, the engine caught. As the pilot walked around the wingtip to get into the airplane, the airplane began rolling. He called out for the passenger to turn off the magnetos; however, the airplane rolled into a parked airplane. The pilot did not note any mechanical anomalies with the airplane, nor did he indicate the use of any other airplane securing devices such as chocks or a tail tie-down.
Aircraft
- Registration
- N10674
- Reported as
- Piper J3C-65
- Category
- Airplane
- Serial number
- 20168
- Airframe hours
- 4,870
- Engine
- Cont Motor A&C65 SERIES, 65 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Westfield Flight Academy
- Registered owner
- Mymie Pham
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · November 16, 2010
- Departed
- BAF · Westfield, MA
- Destination
- BAF · Westfield, MA
- Airport
- BAF · Barnes Municipal Airport
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 22
- Injuries
- None
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Without waivers/limitations
- Last flight review
- April 5, 2010
- Flight hours
- 751 total · 67 in this make and model · 686 as pilot in command · 93 in the last 90 days · 50 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 190° at 13 knots, gusting 18
- Visibility
- 10 statute miles
- Lowest ceiling
- 11,000 ft broken
- Temperature
- 52 °F, dew point 25 °F
- Altimeter
- 30.39 inHg
- Observed at
- BAF
Docket · 1
The files NTSB released with the investigation on June 6, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 637 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.