GAA15CA294

NTSB accident investigation · Howard DGA 15P · Englewood, CO · September 25, 2015

Accident · No injuriesData collectionFinal report
Date
September 25, 2015, 14:30 local (20:30 UTC)
Place
Englewood, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N1785HHoward DGA 15P
Defining event
Approach-VFR pattern final: Flight control sys malf/fail
Weather
Visual (VMC) · Day
Status
Completed · report November 5, 2015
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
Federal Aviation Administration
FAA report
20150925016909A
Case key
92102

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 separation of the elevator control system linkage at a push/pull tube and cable joint, for an unknown reason, because the bolt and associated hardware securing the joint was not found for examination.

Findings · 2

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 reported that he was en route to his destination and three to four miles before reaching the runway, he lost elevator authority. The pilot used elevator trim and power settings to control pitch and descended over the runway. The pilot was able to level off over the runway and tried to get the airspeed to decrease. The airplane descended, impacted the runway, and sustained substantial damage to a wing strut. A postaccident examination by the FAA revealed the elevator control separated at a connection between the control cable and a push/pull tube. The tube and cable ends remained intact, and showed no signs of deformation or fatigue. The bolt connecting them was missing and not recovered for examination. According to methods, techniques, and practices in Advisory Circular 43.13B the bolt should have been secured with a castellated nut and cotter pin, and neither were recovered from the wreckage.

Factual narrative

The pilot reported that he was en route to his destination and three to four miles before reaching the runway, he lost elevator authority. The pilot used elevator trim and power settings to control pitch and descended over the runway. The pilot was able to level off over the runway and tried to get the airspeed to decrease. The airplane descended, impacted the runway, and sustained substantial damage to a wing strut. A postaccident examination by the FAA revealed the elevator control separated at a connection between the control cable and a push/pull tube. The tube and cable ends remained intact, and showed no signs of deformation or fatigue. The bolt connecting them was missing and not recovered for examination. According to methods, techniques, and practices in Advisory Circular 43.13B, the bolt should have been secured with a castellated nut and cotter pin, and neither were recovered from the wreckage.

Aircraft

Registration
N1785H
Reported as
Howard DGA 15P
Category
Airplane
Serial number
1785
Built
1943
Airframe hours
215
Engine
Pratt & Whitney R-985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 30, 2015
Departed
APA · Englewood, CO
Destination
APA · Englewood, CO
Airport
APA · Centennial, runway 35R, 10,001 × 100 ft, asphalt

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
58
Injuries
None
Certificates
Private, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
April 15, 2015
Seat
Left
Restraint
Lap only
Flight hours
2,800 total · 375 in this make and model · 2,600 as pilot in command · 60 in the last 90 days · 25 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 7 knots
Visibility
10 statute miles
Temperature
82 °F, dew point 34 °F
Altimeter
30.28 inHg
Observed at
KAPA, 1 nm away

Docket · 3

The files NTSB released with the investigation on October 29, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.9 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.