CHI85IA039

NTSB incident investigation · Rockwell NA-265-25 · Chicago, IL · November 5, 1984

Incident · No injuriesIncident investigationFinal report
Date
November 5, 1984, 10:30 local (16:30 UTC)
Place
Chicago, IL
Injuries
10 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N97RERockwell NA-265-25
Weather
Day
Status
Completed
Report
Approved by Office Director
FAA report
19841105076409I
Case key
12904

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

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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.

In flight encounter with weatherCruise
Weather condition - icing conditionsFactor
Flight into known adverse weather - performedPilot in command
Anti-ice/deice system,wing - inadequateCause
Wing - iceCause
Altitude deviation,uncontrolledCruise
Remedial action - performedPilot in command

Analysis

Acft control was temporarily lost when 36 degrees of flaps were added due to ice build-up behind heated leading edge of the wing. Raising the flaps to 20 degs alleviated the control problem and an uneventful landing was accomplished at a higher than normal airspeed. The acft is certified for flt into icing conditions and all anti-ice systems were on at the time of this incident. Plt reports at the time mentioned icing conditions ranging from light rime to severe clear icing. Light rime icing was also mentioned on the ATIS broadcast.

Aircraft

Registration
N97RE
Reported as
Rockwell NA-265-25
Category
Airplane
Serial number
46532
Engine
Airesearch TFE 731-3R1D, 3,700 lbs thrust, turbo jet
Damage
No damage
Flight
Executive/Corporate · Part 91
Registered owner
Reliance Electric Company
Airworthiness certificate
Standard, Normal
Departed
HOU · Houston, TX
Destination
ORD · Chicago, IL
Flight plan
IFR
Airport
ORD · O'Hare International, runway 27L, 10,141 × 150 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
11,100 total · 150 in the last 90 days · 50 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Day
Wind
330° at 11 knots
Visibility
9 statute miles
Lowest ceiling
2,000 ft overcast
Temperature
36 °F, dew point 30 °F
Altimeter
29.00 inHg
Observed at
ORD, 5 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.