Small Transport
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Confusion; Situational Awareness; Workload
Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Ground Equipment Issue
Flight Crew Became Reoriented
Chart Or Publication; Airport; ATC Equipment / Nav Facility / Buildings
Approached Runway 28 into GMU and had the Pilot Monitoring turn the pilot controlled lighting up to max (7 clicks). The runway lights for Runway 28 did not appear to turn on. The approach was continued to 500 feet at which point a go around was executed. We joined the traffic pattern and landed on Runway 1. A third check of the NOTAMs showed that there were no NOTAMs identifying the runway as closed or showing the runway lights as out of service. After landing; we learned that several aviation [websites] such as airnav.com and skyvector.com contain this remark: ATC-CTL. WHEN ATCT CLSD ACTVT MALSF RWY 01; REIL RWY 19; HIRL RWY 01/19; PERIMETER LGTS H1; H2 - CTAF. However; the FAA Chart Supplement contains this remark: ACTIVATE perimeter lights H1 and H2--CTAF.  Of note; this is listed only as a Heliport Remark; not in the general remarks for the airport. Thus; it appears that the Runway 28 lights cannot be controlled using Pilot Controlled Lighting procedures on the CTAF frequency; however; there is incomplete information is the FAA Chart Supplement. We recommend that the FAA Chart Supplement be updated with the correct information.  Also; consider adding the pilot controlled lighting limitations information to the Airfield Sketch and on the Runway 28 Approach Plate; as these products are much more likely to be referenced by a flight crew while in flight.
A pilot landing at GMU airport after the Tower closed reported the Runway 28 lights cannot be activated from the aircraft. This information is not published on the FAA approach charts or airfield diagram.