Corporate jet first officer reported while taxiing out at pbi a GA aircraft flew over their aircraft...

Narrative:

Position at pbi FBO. Requested taxi. Ground said taxi to 10L via east; hold for a cirrus from right to left; follow him; hold short of 14. Acquired cirrus visually; confirmed captain had it in sight; and he started taxi. As we approached 14/32; ATC cleared us across 32; and to continue via F and left to 10L. Crossed 14 and as we turned up F; captain asked; 'confirm F and left all the way?' I replied 'affirmative.' as we approached F2 I looked to my left to verify the cirrus was proceeding on right; and looked to my right to verify no other traffic was approaching on left. I looked back to my left; and saw motion. Said 'captain; there is an airplane!' he looked and saw it also. Two of our passengers saw it also. The aircraft (aircraft Y) had taken off on the short parallel runway and passed over us at an estimated height of 100 feet or less. There was no opportunity to take evasive action. As we turned onto left; I called ground control and advised them what had happened. Ground replied 'sorry about that.' we continued on left; called tower; were given 'line up and wait 10L; traffic landing 14; traffic on a six mile final 10L.' traffic cleared; we were cleared for takeoff; and departed.factors were: busy airport; all 3 runways in use (parallel and intersecting.) parallel runways are separated by approximately 700 feet or less; and the short parallel (10R) departs over active taxiways and nearly directly over [the] ramp on the south side of the airport. Coordination between tower and ground was obviously compromised. From the position we were at on taxiway F; distance to departure end of 10R is approximately 4500 feet. It is difficult to see if an aircraft is on the runway; let alone in the takeoff roll. Layout of taxiways in the vicinity of taxiways F; left and north is a charted 'hotspot; requiring increased vigilance.'

Original NASA ASRS Text

Title: Corporate Jet First Officer reported while taxiing out at PBI a GA aircraft flew over their aircraft that had departed from the short parallel runway.

Narrative: Position at PBI FBO. Requested taxi. Ground said taxi to 10L via E; hold for a Cirrus from right to left; follow him; hold short of 14. Acquired Cirrus visually; confirmed Captain had it in sight; and he started taxi. As we approached 14/32; ATC cleared us across 32; and to continue via F and L to 10L. Crossed 14 and as we turned up F; Captain asked; 'confirm F and L all the way?' I replied 'affirmative.' As we approached F2 I looked to my left to verify the Cirrus was proceeding on R; and looked to my right to verify no other traffic was approaching on L. I looked back to my left; and saw motion. Said 'Captain; there is an airplane!' He looked and saw it also. Two of our passengers saw it also. The aircraft (Aircraft Y) had taken off on the short parallel runway and passed over us at an estimated height of 100 feet or less. There was no opportunity to take evasive action. As we turned onto L; I called Ground Control and advised them what had happened. Ground replied 'sorry about that.' We continued on L; called tower; were given 'Line up and wait 10L; traffic landing 14; traffic on a six mile final 10L.' Traffic cleared; we were cleared for takeoff; and departed.Factors were: busy airport; all 3 runways in use (parallel and intersecting.) Parallel runways are separated by approximately 700 feet or less; and the short parallel (10R) departs over active taxiways and nearly directly over [the] ramp on the south side of the airport. Coordination between tower and ground was obviously compromised. From the position we were at on taxiway F; distance to departure end of 10R is approximately 4500 feet. It is difficult to see if an aircraft is on the runway; let alone in the takeoff roll. Layout of taxiways in the vicinity of taxiways F; L and N is a charted 'hotspot; requiring increased vigilance.'

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1490562
Time
Date	201710
Local Time Of Day	0601-1200
Place
Locale Reference	PBI.Airport
State Reference	FL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Medium Large Transport
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 95 Flight Crew Total 16500 Flight Crew Type 140
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical
Miss Distance	Vertical 100

Corporate jet first officer reported while taxiing out at pbi a GA aircraft flew over their aircraft that had departed from the short parallel runway.