What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: on October 5, ups flight 9320, Boeing 727 aircraft, N907UP, returned to Louisville international airport (sdf) after experiencing airborne noise on passing 11,000 feet flight altitude, at an airspeed of 250 knots. The crew reported that a loud bang was heard from the rear of the aircrft. The flight engineer then determined that the high frequency (hf) antenna, a temporary installation had separated from the right wing and was sporadically contacting, and banging the fuselage. The crew reduced the airspeed of the aircraft, and requested an immediate return to sdf. The crew also reported all engine parameters to be normal, and that the auxiliary power unit and spoilers were not used. The landing was uneventful, and without incident. A visual post flight inspection confirmed that the hf antenna tension regulator, and antenna wire had separated from the right wing, and contacted the #3 engine intake with pieces of the regulator being ingested. Further inspection revealed severe damage to the fan blades, which necessitated an engine change. Additionally the right upper fuselage incurred numerous dents and nicks. The tension regulator and hf antenna wire had been installed as part of an hf ferry flight kit for an extended over water flight. The installation was in accordance with a ups engineering order (eo) per the Boeing service bulletin #727-23-0051. The eo had been accomplished prior to the flight departure. A review of the maintenance logbook, Boeing service bulletin, and the engineering order to install the kit revealed no irregularities in its' procedures employed to install the kit is presently not presumed to be a factor for the failure of the tension regulator, part number chelton #8-42. Initial indications are that the tension regulator that connects the antenna wire to the fuselage, and is secured to the wing failed and then separated. The tension regulator has not been recovered, except for a small piece called a collete, which has been sent to Boeing for analysis. The incident is under investigation by ups, and Boeing aircraft to determine a cause for the failure, and subsequent detachment of the tension regulator. As a result of this incident ups will discontinue the use of the hf flight kit.
As the FAA filed it
NARRATIVE: ON OCTOBER 5, UPS FLIGHT 9320, BOEING 727 AIRCRAFT, N907UP, RETURNED TO LOUISVILLE INTERNATIONAL AIRPORT (SDF) AFTER EXPERIENCING AIRBORNE NOISE ON PASSING 11,000 FEET FLIGHT ALTITUDE, AT AN AIRSPEED OF 250 KNOTS. THE CREW REPORTED THAT A LOUD BANG WAS HEARD FROM THE REAR OF THE AIRCRFT. THE FLIGHT ENGINEER THEN DETERMINED THAT THE HIGH FREQUENCY (HF) ANTENNA, A TEMPORARY INSTALLATION HAD SEPARATED FROM THE RIGHT WING AND WAS SPORADICALLY CONTACTING, AND BANGING THE FUSELAGE. THE CREW REDUCED THE AIRSPEED OF THE AIRCRAFT, AND REQUESTED AN IMMEDIATE RETURN TO SDF. THE CREW ALSO REPORTED ALL ENGINE PARAMETERS TO BE NORMAL, AND THAT THE AUXILIARY POWER UNIT AND SPOILERS WERE NOT USED. THE LANDING WAS UNEVENTFUL, AND WITHOUT INCIDENT. A VISUAL POST FLIGHT INSPECTION CONFIRMED THAT THE HF ANTENNA TENSION REGULATOR, AND ANTENNA WIRE HAD SEPARATED FROM THE RIGHT WING, AND CONTACTED THE #3 ENGINE INTAKE WITH PIECES OF THE REGULATOR BEING INGESTED. FURTHER INSPECTION REVEALED SEVERE DAMAGE TO THE FAN BLADES, WHICH NECESSITATED AN ENGINE CHANGE. ADDITIONALLY THE RIGHT UPPER FUSELAGE INCURRED NUMEROUS DENTS AND NICKS. THE TENSION REGULATOR AND HF ANTENNA WIRE HAD BEEN INSTALLED AS PART OF AN HF FERRY FLIGHT KIT FOR AN EXTENDED OVER WATER FLIGHT. THE INSTALLATION WAS IN ACCORDANCE WITH A UPS ENGINEERING ORDER (EO) PER THE BOEING SERVICE BULLETIN #727-23-0051. THE EO HAD BEEN ACCOMPLISHED PRIOR TO THE FLIGHT DEPARTURE. A REVIEW OF THE MAINTENANCE LOGBOOK, BOEING SERVICE BULLETIN, AND THE ENGINEERING ORDER TO INSTALL THE KIT REVEALED NO IRREGULARITIES IN ITS' PROCEDURES EMPLOYED TO INSTALL THE KIT IS PRESENTLY NOT PRESUMED TO BE A FACTOR FOR THE FAILURE OF THE TENSION REGULATOR, PART NUMBER CHELTON #8-42. INITIAL INDICATIONS ARE THAT THE TENSION REGULATOR THAT CONNECTS THE ANTENNA WIRE TO THE FUSELAGE, AND IS SECURED TO THE WING FAILED AND THEN SEPARATED.THE TENSION REGULATOR HAS NOT BEEN RECOVERED, EXCEPT FOR A SMALL PIECE CALLED A COLLETE, WHICH HAS BEEN SENT TO BOEING FOR ANALYSIS. THE INCIDENT IS UNDER INVESTIGATION BY UPS, AND BOEING AIRCRAFT TO DETERMINE A CAUSE FOR THE FAILURE, AND SUBSEQUENT DETACHMENT OF THE TENSION REGULATOR. AS A RESULT OF THIS INCIDENT UPS WILL DISCONTINUE THE USE OF THE HF FLIGHT KIT.