# NTSB CHI69I0051: Boeing 727, N7027U, Detroit, MI, November 16, 1968

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: November 16, 1968
- Place: Detroit, MI · DETROIT, MI
- Location: 42.3314° N, 83.0458° W: Placed by OpenAirDocs: center of Detroit, MI, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3314&lon=-83.0458&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 27 uninjured
- Status: Completed, report January 22, 1969
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79527
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI69I0051
- Page: https://openairdocs.org/ntsb/CHI69I0051

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0022  68/11/16   DETROIT,MICH        BOEING 727          CR-  0  0  3  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1706                    N7027U              PX-  0  0 24                            49, 11050 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            700 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - UNITED AIR LINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNCONTROLLED ALTITUDE DEVIATIONS                         IN FLIGHT: CLIMB TO CRUISE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- PLT LOST CONTROL WHEN STRONG VERTICAL CURRENTS WERE ENCOUNTERED. SAFE LNDG MADE.
```

## Aircraft

- Registration: [N7027U](https://openairdocs.org/deregistered/N7027U-1992-02-05), registration cancelled 1992-02-05, S/N 18319 (OpenAirDocs)
- Reported make and model: BOEING 727
- Registry model: [Boeing 727-22](https://openairdocs.org/model/boeing-727-22) (registry code 1384002) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: No 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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