FTW82FRG20

NTSB accident investigation · Curtis C46 · Laredo, TX · January 7, 1982

Accident · No injuriesFinal report
Date
January 7, 1982, 00:45 local (06:45 UTC)
Place
Laredo, TX
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Standing
Aircraft
N1698MCurtis C46
Weather
Visual (VMC) · Night/dark
Status
Completed · report January 7, 1983
Report
Approved by Office Director
FAA report
19820107000859A
Case key
71370

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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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.

ExplosionStanding - starting engine(s)
Fuel system,tank - looseCause
Aircraft preflight - inadequatePilot in commandCause
Fuel system,tank - corrodedCause
Maintenance - poorCompany maintenance personnelFactor
Fuel system,tank - crackedCause
Fuel system,tank - leakCause

Analysis

While performing the exterior inspection the pilot noted that fuel was dripping from both wings inboard of the fuel tanks at the rear attach angle fairing plates. Just after starting the right engine an explosion occurred in the right wing. The crew shut down the engine and while departing the aircraft the left wing exploded. Examination revealed both the right front and rear fuel tank filler necks were loose and could be turned by hand. The filler neck washer was corroded and filler neck scupper was cracked.

Aircraft

Registration
N1698M
Reported as
Curtis C46
Category
Airplane
Airframe hours
37,893
Engine
P&W R-2350, 2,500 horsepower, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Part 125
Operator
South Central Aviation
Registered owner
South Central Aviation
Departed
LRD · Laredo, TX
Destination
Tampico, Mexico, OF
Flight plan
Unknown
Airport
LRD · Laredo Intl

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
54
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 1, Valid Medical--w/ waivers/lim
Flight hours
14,553 total · 7,800 in this make and model · 13,553 as pilot in command · 121 in the last 90 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
30° at 6 knots
Temperature
138 °F

FAA reports on this event · 1

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