MIA93LA106

NTSB accident investigation · Douglas DC-3C · Zephyrhills, FL · April 20, 1993

Accident · No injuriesLimited investigationFinal report
Date
April 20, 1993, 16:24 local (20:24 UTC)
Place
Zephyrhills, FL
Injuries
42 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N8056Douglas DC-3C
Weather
Visual (VMC) · Day
Status
Completed · report February 28, 1994
Report
Approved by Office Director
FAA report
19930420009749A
Case key
33258

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

The pilot-in-command's failure to maintain best single-engine rate-of-climb speed which resulted in a forced landing. A factor which contributed to the accident was a possible exhaust system clamp failure.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionTakeoff - initial climb
Exhaust system,clamp - failure,totalFactor
Forced landingTakeoff - initial climb
Airspeed(vyse) - not maintainedPilot in commandCause
In flight collision with terrain/waterTakeoff - initial climb

Analysis

The pilot stated that on initial climb, at about 400 ft AGL, the crew smelled something burning, followed by light smoke in the cabin. Both engines appeared normal visually. The odor and smoke increased, and the left fire warning light illuminated. The left engine was shut down & the prop feathered. The pilot increased power on the right engine; however, the airplane would not climb or maintain airspeed. A gear and flaps up forced landing was made into a field. The pilot stated that he believed an exhaust clamp broke allowing a segment of exhaust to scorch cowling and activate the fire warning system. Examination of the left engine revealed that the lower fire detection elements were fused and broken free, and that the hydraulic lines were burned through.

Aircraft

Registration
N8056
Reported as
Douglas DC-3C
Category
Airplane
Serial number
25735
Airframe hours
16,891
Engine
P&W 1830-75, 1,350 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Phoenix Air Inc.
Registered owner
Phoenix Air Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 16, 1993 · 15 hours before
Departed
ZPH

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
38
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
8,500 total · 4,150 in this make and model · 8,000 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 7 knots
Lowest ceiling
25,000 ft overcast
Temperature
79 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
TPA, 11 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.