CEN22LA421

NTSB accident investigation · Piper PA-28R-180 · Broomfield, CO · September 14, 2022

Accident · No injuriesClass 3 · LimitedFinal report
Date
September 14, 2022, 11:40 local (17:40 UTC)
Place
Broomfield, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3713TPiper PA-28R-180
Defining event
Initial climb: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20220914015789A
Case key
105939

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

A partial loss of engine power due to a collapsed induction hose that blocked engine intake airflow.

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.

Not determinedNot determined › Not determined · Unknown/Not determinedPiper PA-28R-180: 5 casesAll aircraft: 2,247 cases
Power plant: air intakeAircraft › Aircraft power plant · Damaged/degradedPiper PA-28R-180: 1 caseAll aircraft: 50 cases

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 shortly after takeoff, when the airplane was about 200 ft above ground level (AGL), the engine sustained a partial loss of power. He was not able to climb or maintain altitude and executed a forced landing. During the landing the airplane nosed over into a pond, resulting in substantial damage to both wings. Recorded flight data was consistent with the pilot’s description of events, but no recorded engine data was available. Postaccident examination of the airplane revealed that the interior liner of the induction air hose between the air filter and the throttle body was partially collapsed inward. The exterior of the hose did not display obvious damage. No further preimpact anomalies that would explain the reported loss of engine power were found. Weather conditions at the time of the accident were conducive for carburetor icing at glide and cruise power settings, but not at the full power setting that would be used for takeoff and initial climb. Based on the available evidence, the partially collapsed induction hose likely collapsed further, blocking airflow to the carburetor and resulting in the loss of engine power.

Factual narrative

On September 14, 2022, about 1140 mountain daylight time, a Piper PA-28R-180, N3713T, was substantially damaged when it was involved in an accident near Broomfield, Colorado. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot recently purchased the airplane and had been flying it regularly in the three weeks before the accident. On the accident flight, the airplane departed from runway 16 at the Erie Municipal Airport (EIK), Erie, Colorado, where the airplane was based. When the airplane was about 200 ft AGL, the engine sustained a partial loss of power. The pilot reported that although the engine was still running, it was not producing enough power to climb. The pilot executed a forced landing to a residential area where the airplane nosed over and came to rest in a pond. Both wings sustained substantial damage. Postaccident examination of the airplane revealed that the interior liner of the induction air hose between the air filter and the throttle body was partially collapsed inward. The exterior of the hose did not display obvious damage. No further preimpact anomalies that would explain the reported loss of engine power were found. The airplane was equipped with a Garmin electronic flight instrument system (EFIS), but the system did not record engine parameters. Flight data recovered from the EFIS system was consistent with the pilot’s description of the flight. The engine instrumentation installed in the airplane consisted of non-recording analog gauges consistent with those installed during its manufacture in 1967. The temperature and dew point about the time of the accident was conducive for carburetor icing at glide and cruise power settings.

Aircraft

Registration
N3713T
Reported as
Piper PA-28R-180
Category
Airplane
Serial number
28R-30017
Built
1967
Airframe hours
4,592.3
Engine
Lycoming IO-360-B1E, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 11, 2022 · 25 hours before
Airport
EIK · Erie Muni, runway 16, 4,700 × 60 ft, concrete
Equipment
ADS-B, Electronic primary flight display, 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
43
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, Without waivers/limitations
Seat
Left
Restraint
3-point

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 39 °F
Altimeter
29.97 inHg
Observed at
KEIK
METAR
METAR KEIK 141655Z AUTO 04003KT 10SM CLR 24/04 A2997 RMK AO2 T02360037 PWINO=

Docket · 8

The files NTSB released with the investigation on February 7, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 29.3 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.