- Date
- February 16, 1988, 18:20 local (Feb 17, 1988, 01:20 UTC)
- Place
- Denver, CO
- Injuries
- 16 uninjured
- Phase of flight
- Approach
- Aircraft
- N9058PDe Havilland DH-7N1WBCessna 441
- Weather
- Instrument (IMC) · Night/dark
- Status
- Completed · report July 18, 1990
- Report
- Approved by Office Director
- Case key
- 17392
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
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.
Analysis
As rocky mtn airway flt 2129 (de havilland DH-7, N9058P) & Cessna 441, N1WB, were arriving, there was moderate to hvy traffic & a rwy change was in progress. N1WB & flt 2129 were provided initial sequencing by feeder ctlrs (AR-1 & AR-4). Both flts were handed off to the final ctlr (AR-2), who was responsible for establishing arrival sequence. AR-2 was a developmental ctlr, who had just begun training in that position. N1WB & flt 2129 were vectored for simultaneous IFR apchs to rwys 17L & 18. As the two acft were on their respective final apchs, minimum separation standard was lost. When the local ctlr determined the error, he issued instructions to correct the situation.
Aircraft · 2
- Registration
- N9058P
- Reported as
- De Havilland DH-7
- Category
- Airplane
- Serial number
- 5
- Engine
- P&W PT6A-50, 1,120 horsepower, turbo prop
- Damage
- No damage
- Flight
- Part 135
- Registered owner
- Rocky Mountain Airways
- Airworthiness certificate
- Standard, Normal
- Departed
- ASE · Aspen, CO
- Destination
- DEN
- Flight plan
- IFR
- Airport
- DEN · Stapleton Intl, runway 18, 5,650 × 150 ft, asphalt
- Registration
- N1WB
- Reported as
- Cessna 441
- Category
- Airplane
- Serial number
- 441-203
- Airframe hours
- 3,171
- Engine
- Airesearch TPE 331-8, 635 horsepower, turbo prop
- Damage
- No damage
- Flight
- Business · Part 91
- Registered owner
- Capital Management, Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Continuous airworthiness · February 1, 1988 · 12 hours before
- Departed
- JAX · Jacksonville, FL
- Destination
- DEN
- Flight plan
- IFR
- Airport
- DEN · Stapleton Intl, runway 17, 12,000 × 200 ft, concrete
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot, aircraft N9058P
- Age
- 48
- Certificates
- Airline transport, Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 12,500 total · 3,000 in this make and model · 1,800 as pilot in command · 180 in the last 90 days · 50 in the last 30 days · 4 in the last 24 hours
- Role
- Pilot, aircraft N1WB
- Age
- 57
- Certificates
- Flight instructor, Airline transport
- Airplane ratings
- Single-engine land, Single-engine sea, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 4,848 total · 247 in this make and model · 4,638 as pilot in command · 125 in the last 90 days · 7 in the last 24 hours
Weather
- Conditions
- Instrument (IMC) · Night/dark
- Wind
- 12° at 3 knots
- Visibility
- 4 statute miles
- Lowest ceiling
- 900 ft broken
- Temperature
- 28 °F, dew point 27 °F
- Altimeter
- 30.00 inHg
- Observed at
- DEN, 3 nm away