WPR14LA080

NTSB accident investigation · Cessna 172N · Pacoima, CA · December 29, 2013

Accident · Minor injuriesLimited investigationFinal report
Date
December 29, 2013, 12:53 local (20:53 UTC)
Place
Pacoima, CA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4936DCessna 172N
Defining event
Maneuvering: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report October 3, 2016
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20131229025039A
Case key
88598

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.

The flight instructor’s inadequate compensation for the gusting crosswind conditions during landing, which resulted in a loss of airplane control.

Findings · 6

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

Analysis

The private pilot and the flight instructor were conducting a local instructional flight. The pilot reported that, due to high wind, the flight instructor took the controls during the landing. He added that, as the airplane touched down, it encountered a wind gust and then became airborne. The flight instructor applied power in an attempt to crab into the wind and avoid colliding with the air traffic control tower. The airplane then encountered another wind gust, ascended to about 50 ft, continued to drift left of the runway, and then rolled. The flight instructor was unable to maintain control, and the airplane subsequently descended and collided with power transmission lines, impacted a building, and came to rest in a nearby parking lot. The reported wind at the airport about the time of the accident was a 22-knot crosswind gusting up to 26 knots. The pilots reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

On December 29, 2013, at 1253 Pacific standard time, a Cessna 172N, N4936D, impacted power transmission wires during an aborted landing at Whiteman Airport (WHP), Pacoima, California. Vista Air, Inc., operated the airplane under the provisions of 14 Code of Federal Regulations Part 91. The certified flight instructor (CFI) and the private pilot receiving instruction (PUI) sustained minor injuries; the airplane sustained substantial damage due to impact forces. The local instructional flight departed Pacoima about 1200. Visual meteorological conditions prevailed, and no flight plan had been filed. During an attempted landing on runway 30, the airplane touched down on the runway adjacent to intersection Delta and then became airborne again. The air traffic controller heard the engine sounds increase as the airplane turned 90 degrees left. Shortly thereafter, witnesses reported that the airplane's left wing collided with power transmission lines. The airplane then descended into a building in a used car sales lot. The CFI reported that due to the high winds, he was the flying pilot during the landing. He stated that as the airplane touched down, they hit a gust of wind and became airborne. The airplane drifted left of runway centerline and the CFI added power in an attempt to crab into the wind and avoid the air traffic control tower. The airplane continued to drift left and collided with power transmission lines. The pilot not flying estimated that upon encountering the wind gust that the airplane climbed about 50 feet above the runway, he further stated that on the attempted go-around that "another gust of wind hit us and we turned on our side. We dropped like a rock into a set of power lines." The reported winds at WHP during the timeframe of the accident were ranging from 350 degrees at 24 knots, 320 degrees at 22 knots, 360 degrees at 26 knots, and 360 degrees at 25 knots, respectively. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

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
N4936D
Reported as
Cessna 172N
Category
Airplane
Serial number
17272405
Built
1979
Airframe hours
13,100
Engine
Lycoming O-320H SERIES, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Vista Aviation
Registered owner
Rhodes John D
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · November 29, 2013
Departed
WHP · Pacoima, CA
Destination
WHP · Pacoima, CA
Airport
WHP · Whiteman, runway 30, 4,120 × 75 ft, asphalt
Equipment
Stall warning system

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
34
Injuries
Minor
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Seat
Right
Flight hours
878 total · 799 in this make and model · 817 as pilot in command · 280 in the last 90 days · 84 in the last 30 days · 5 in the last 24 hours
Role
Pilot
Age
42
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Last flight review
February 18, 2006
Seat
Left
Restraint
3-point
Flight hours
140.8 total · 110.5 in this make and model · 89.3 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 20 knots, gusting 30
Visibility
25 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 1 °F
Altimeter
30.05 inHg
Observed at
WHP

Docket · 5

The files NTSB released with the investigation on August 16, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.3 MB 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.