ANC19LA008

NTSB accident investigation · Cessna 172 · Whittier, AK · November 27, 2018

Accident · Minor injuriesLimited investigationFinal report
Date
November 27, 2018, 12:30 local (21:30 UTC)
Place
Whittier, AK
Injuries
2 minor
Damage
Destroyed
Phase of flight
Takeoff
Aircraft
N7207ACessna 172
Defining event
Takeoff: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report April 13, 2020
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20181127017719A
Case key
98700

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 NTSB’s determination of the probable cause, and any contributing factors.

A total loss of engine power for reasons that could not be determined based on the available evidence.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.

Analysis

According to the student pilot, on a previous flight the same day, while on final approach to the off-airport landing site, the engine lost all power. He applied carburetor heat and was able to restart the engine and landed uneventfully. Following the event, the pilot sumped the fuel system and removed 7 vials of water. He then taxied for departure and completed an engine run-up. The engine briefly ran roughly and then began to smooth out with no anomalies noted. Just after departure, about 30 ft above ground level, the engine lost all power. The airplane impacted trees off the departure end of the airstrip and was destroyed by postcrash fire. Due to the remote location of the accident site, the airplane was not recovered or examined after the accident; therefore, the reason for the loss of engine power could not be determined.

Factual narrative

On November 27, 2018, about 1230 Alaska standard time, a Cessna 172 airplane, N7207A, was destroyed during a forced landing and postcrash fire following a total loss of engine power shortly after departure from an off-airport landing site on Montague Island about 60 miles east of Seward, Alaska. The student pilot and one passenger sustained minor injuries. The airplane was registered to and operated by the pilot as a 14 Code of Federal Regulations Part 91 visual flight rules (VFR) flight. Visual meteorological conditions prevailed, and no flight plan had been filed. According to the pilot, on a previous flight the same day, while on final approach to the off-airport landing site on Montague Island the engine lost all power. He applied carburetor heat and was able to restart the engine and landed uneventfully. Following the event, the pilot sumped the fuel system and removed 7 vials of water. He then taxied for departure and completed a run-up. The engine continued to run rough for a short period of time, then began to smooth out with no anomalies noted. Just after departure from the off-airport landing site, at about 30 ft above ground level, the engine lost all power. The airplane impacted Alder trees off the departure end of the airstrip and was destroyed by postcrash fire. The aircraft was equipped with a Continental Motors O-300 series engine. Due to the remote location of the accident site, the airplane was not recovered or examined after the accident. The closet weather reporting facility is Seward Airport (PAWD), Seward, Alaska, about 60 miles west of the accident site. At 1353, an aviation routine weather report (METAR) from PAWD was reporting in part: wind, calm; sky condition, broken clouds at 3,800 ft, broken clouds at 4,900 ft, overcast clouds at 6,000 ft; visibility, 10 statute miles; temperature, 45° F; dewpoint, 41° F; altimeter, 29.06 inHg.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.

Aircraft

Registration
N7207A
Reported as
Cessna 172 (Undesignat)
Category
Airplane
Serial number
29307
Built
1956
Airframe hours
5,080
Engine
Continental O-300 SER, 145 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 11, 2018
Departed
Whittier, AK
Equipment
None

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
39
Injuries
Minor
Certificate
Student
Medical
Class 3, Without waivers/limitations
Seat
Left
Restraint
3-point

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
3,800 ft broken
Temperature
45 °F, dew point 41 °F
Altimeter
29.05 inHg
Observed at
PAWD

Docket · 2

The files NTSB released with the investigation on October 24, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 517 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.