# NTSB ATL87IA179: Boeing 727-232, N482DA, Nashville, TN, June 19, 1987

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: June 18, 1987, 22:17 local (Jun 19, 1987, 03:17 UTC)
- Place: Nashville, TN
- Coordinates: 36.109962, -86.660255 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.1100&lon=-86.6603&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 161 uninjured
- Status: Completed, report October 17, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 7335
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL87IA179
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/7335/pdf
- Page: https://openairdocs.org/ntsb/ATL87IA179

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Near collision between aircraft, takeoff - roll/run
  - light condition - dark night
  - atc clearance - misread, copilot/second pilot (cause)
  - instructions,written/verbal - not followed, pilot in command (cause)
  - airport facilities,runway/landing area condition (contributing factor)
  - visual lookout - reduced (contributing factor)
- Near collision between aircraft, takeoff
  - light condition - dark night
  - atc clearance - misread, pilot of other aircraft (cause)
  - instructions,written/verbal - not followed, pilot of other aircraft (cause)
  - airport facilities,runway/landing area condition (contributing factor)
  - visual lookout - reduced (contributing factor)

## Analysis (aircraft 2)

AT APRX 2211 CDT, DELTA FLT 314 (BOEING 727, N482DA) WAS CLRD TO TAXI TO RWY 31 WITH INFO INDIA. INFO INDIA INDCD RWY 31WAS ACTIVE. SOON THEREAFTER, SOUTHWEST FLT 715 (BOEING 737, N50SW) REQD & RECD TAXI CLNC TO RWY 13 FOR TKOF. TO ACCOMMO-DATE INCOMING TRAFFIC THAT HAD REQD RWY 13 FOR LNDG, FLT 715 (AT THE APCH END OF RWY 13) WAS CLRD FOR IMMEDIATE TKOF. INITIAL ACKNOWLEDGEMENT (OF TKOF CLNC, RECD BY TWR) WAS GARBLED FLWD BY AN AUDIBLE '. . . 715.'  THE TWR CTLR DID NOT REALIZE BOTH FLTS HAD ACKNOWLEDGED THE TKOF CLNC, SINCE FLT 314 WAS STILL TAXIING TO RWY 31. BOTH FLTS STARTED DEPG FM OPPOSITE ENDS OF THE RWY. AT 1ST, NEITHER FLT CREW COULD SEE THE OTR DUE TO A CROWN IN THE RWY. WHEN THEY SAW EACH OTR, FLT 715 WAS APCHG V1 SPEED & ELECTED TO CONT THE TKOF. FLT 314 HAD JUST BGN ITS TKOF ROLL & ABORTED BY TURNING OFF ON A TWY. AN INV REVEALED THAT BFR DEPG, WHEN FLT 314 WAS APCHG RWY 31 FOR TKOF, THE 1ST OFFICER (F/O) THOUGHT HE HEARD CLNC FOR TKOF. THE CAPT OF FLT 314 ASKED THE F/O IF HE WAS SURE & THE F/O REPLIED 'YES' & SAID HE HAD ACKNOWLEDGED THE CLNC.

## Aircraft 1

- Registration: [N482DA](https://openairdocs.org/deregistered/N482DA-2000-03-22), registration cancelled 2000-03-22, S/N 20862 (OpenAirDocs)
- Reported make and model: BOEING 727-232
- Registry model: [Boeing 727-232](https://openairdocs.org/model/boeing-727-232) (registry code 1384082) (OpenAirDocs)
- Category: Airplane
- Serial number: 20862
- Engines: P&W JT8D-15 15500 lbs thrust turbo fan
- Damage: No damage
- Flight: Part 121
- Registered owner: Delta Airlines
- Airworthiness certificate: Standard, Transport
- Departed: BNA
- Destination: TYS, KNOXVILLE, TN
- Flight plan: IFR
- Airport: BNA, Nashville, runway 31, 8,500 × 150 ft, asphalt

## Aircraft 2

- Registration: [N50SW](https://openairdocs.org/deregistered/N50SW-1999-02-24), registration cancelled 1999-02-24, S/N 21447 (OpenAirDocs)
- Reported make and model: BOEING 737-2H4
- Registry model: [Boeing 737-2H4](https://openairdocs.org/model/boeing-737-2h4) (registry code 138448C) (OpenAirDocs)
- Category: Airplane
- Serial number: 21447
- Engines: P&W JT8D-9A 14500 lbs thrust turbo fan
- Damage: No damage
- Flight: Part 121
- Registered owner: Southwest Airlines
- Airworthiness certificate: Standard, Transport
- Departed: BNA
- Destination: MID, CHICAGO, IL
- Flight plan: IFR
- Airport: BNA, Nashville, runway 13, 8,500 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot, aircraft N482DA; age 48; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 14,000 total, 1,000 in this make and model, 6 in the last 24 hours
- Pilot, aircraft N50SW; age 44; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 10,000 total

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 60° at 7 knots
- Visibility: 7 statute miles
- Lowest ceiling: 4,000 ft broken
- Temperature: 75 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: BNA

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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