# NTSB CHI85IA212: Boeing 727-023, N1984, Chicago, IL, May 28, 1985

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Incident investigation · Final report
- Date: May 27, 1985, 21:55 local (May 28, 1985, 02:55 UTC)
- Place: Chicago, IL
- Location: 41.9769° N, 87.9081° W: Placed by OpenAirDocs at CHICAGO O'HARE INTL (ORD), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.9769&lon=-87.9081&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 121 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12917
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85IA212
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12917/pdf
- Page: https://openairdocs.org/ntsb/CHI85IA212

## Sequence of events

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

- Airframe/component/system failure/malfunction, approach - faf/outer marker to threshold (ifr)
  - landing gear,nose gear - inoperative
- Nose down, landing - roll
  - gear extension - improper, flight engineer (cause)

## Analysis

AMERICAN AIRLINES FLT 57 HAD DEPARTED BALTIMORE FOR CHICAGO. ON FINAL APPROACH AT OHARE THE CREW DISCOVERED THE NOSE GEAR WOULD NOT EXTEND. THE FE MADE THREE ATTEMPTS TO CRANK DOWN THE GEAR ALL OF WHICH WERE UNSUCESSFUL. AFTER LANDING WITH NOSE GEAR UP ALL 121 OCCUPANTS SLIDE EVACUATED WITH NO REPORTED INJURY. AFTER JACKING THE NOSE UP A GROUND CREW MAN WENT ABOARD AND CRANKED THE GEAR TO THE DOWN POSITION WITH NO DIFFICULTY.

## Aircraft

- Registration: [N1984](https://openairdocs.org/deregistered/N1984-2017-06-19), registration cancelled 2017-06-19, S/N 18440, built 1964 (OpenAirDocs)
- Reported make and model: BOEING 727-023
- Registry model: [Boeing 727-23](https://openairdocs.org/model/boeing-727-23) (registry code 1384004) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Airplane
- Serial number: 1844D
- Engines: UNKNOWN UNKNOWN turbo jet
- Damage: Minor damage
- Flight: Part 121
- Registered owner: American Airlines Inc.
- Airworthiness certificate: Standard, Normal
- Departed: BWI, BALTIMORE, MD
- Destination: ORD, CHICAGO, IL
- Flight plan: IFR
- Airport: ORD, Ohare International, runway 32L, 11,600 × 200 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; commercial; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 15,000 total, 2,000 in this make and model, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 30° at 8 knots
- Visibility: 15 statute miles
- Lowest ceiling: 2,500 ft broken
- Temperature: 55 °F, dew point 48 °F
- Altimeter: 29.00 inHg
- Observed at: ORD

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Incident 19850527026319I](https://openairdocs.org/incident/19850527026319I), May 27, 1985: Boeing 72723, Chicago, IL, Minor damage. Nose gear would not extend and lost a system hydraulics. Landed with nose gear retracted. Steering filter cap broke

## Other investigations on N1984 (1)

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.

- [NTSB CHI83IA418](https://openairdocs.org/ntsb/CHI83IA418), Sep 7, 1983: Boeing 727-200 (N1984), Chicago, IL, incident, minor damage

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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