# NTSB CHI67I0093: Boeing B-720B, N7548A, Chicago, IL, February 3, 1967

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: February 3, 1967
- Place: Chicago, IL · CHICAGO, IL
- Location: 41.8500° N, 87.6501° W: Placed by OpenAirDocs: center of Chicago, IL, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8500&lon=-87.6501&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 30 uninjured
- Status: Completed, report September 11, 1967
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79458
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI67I0093
- Page: https://openairdocs.org/ntsb/CHI67I0093

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0019   67/2/3    CHICAGO,ILL.        BOEING B-720B       CR-  0  0  8  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0815                    N7548A              PX-  0  0 22                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-NONE         OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - O'HARE INTL
        OPERATOR - AMERICAN AIRLINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: CLIMB TO CRUISE
        REMARKS- YAW DAMPER MALFUNCTION CAUSED ACFT TO DUTCH ROLL AFTER TAKE OFF.
```

## Aircraft

- Registration: [N7548A](https://openairdocs.org/deregistered/N7548A-1970-10-09), registration cancelled 1970-10-09, S/N 18034 (OpenAirDocs)
- Reported make and model: BOEING B-720B
- Registry model: [Boeing 720-023B](https://openairdocs.org/model/boeing-720-023b) (registry code 1383841) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: No damage
- Airport: O'Hare Intl

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.